US2008287482A1PendingUtilityA1

Production of Polyketides and Other Natural Products

60
Assignee: GREGORY MATTHEW ALANPriority: Jul 16, 2002Filed: Oct 31, 2007Published: Nov 20, 2008
Est. expiryJul 16, 2022(expired)· nominal 20-yr term from priority
A61P 43/00A61P 37/04A61P 37/06A61P 37/00C07D 498/18C07K 14/36A61P 29/00C07D 471/18C07D 405/12C12N 15/70C12P 17/188C12N 15/52A61P 31/10C07D 493/18A61P 31/00C07D 487/18C12N 15/76A61P 35/00
60
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Claims

Abstract

The present invention relates to production of polyketides and other natural products and to libraries of compounds and individual novel compounds. One important area is the isolation and potential use of novel FKBP-ligand analogues and host cells that produce these compounds. The invention is particularly concerned with methods for the efficient transformation of strains that produce FKBP analogues and recombinant cells in which cloned genes or gene cassettes are expressed to generate novel compounds such as polyketide (especially rapamycin) FKBP-ligand analogues, and to processes for their preparation, and to means employed therein (e.g. nucleic acids, vectors, gene cassettes and genetically modified strains).

Claims

exact text as granted — not AI-modified
1 - 66 . (canceled) 
     
     
         67 . A compound of the formula: 
       
         
           
           
               
               
           
         
       
       wherein
 R 1  is selected from the group consisting of A, B, C, D, E, F, G, H, and I where
 A is 
 
 
       
         
           
           
               
               
           
         
         
            and B is 
         
       
       
         
           
           
               
               
           
         
         
            where: 
           Y=bond or CH 2 ; and 
           R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are independently selected from the group consisting of Cl, F, OH, SH, H, alkyl, CN, Br, R 27 , OR 27 , C(O)R 27  and HNR 27 , wherein R 27  is a C1-C4 alkyl, wherein R 21 , and R 23 , R 22  and R 24 , R 23  and R 25 , R 24  and R 26 , R 21 , and R 25 , or R 22  and R 26  optionally form a substituted or unsubstituted methylene link, an ether link, a thia link or an amino link, and wherein R 21  and R 22 , R 23  and R 24  or R 25  and R 26  optionally form a ketone; 
           wherein no more than 4 of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are Cl; 
           wherein no more than 2 of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are HNR 27 ; 
           wherein no more than 2 of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are SH; and 
           wherein both R groups from one carbon on the ring are not OH; 
           C is 
         
       
       
         
           
           
               
               
           
         
         
            where: 
           Y=bond or CH 2 ; 
           R 31  and R 32  are independently selected from the group consisting of F, Cl, OH, SH, H, CN, OR 37 , C(O)R 37 , and NHR 37 , wherein R 37  is a C1-C4 alkyl, and wherein R 31  and R 32  optionally form a ketone, a spirocyclopropyl group or are joined by —OCH 2 —, —CH 2 O—, —SCH 2 — or —CH 2 S—; and 
           R 33  and R 34  are independently selected from the group consisting of F, Cl, Br, OR 37 , H, and CN, wherein R 37  is a C1-C4 alkyl; 
           wherein both R groups from one carbon on the ring are not OH; 
           D is 
         
       
       
         
           
           
               
               
           
         
         
            and E is 
         
       
       
         
           
           
               
               
           
         
         
            where: 
           R 41 , R 42 , R 43 , R 44 , R 45  and R 46  are independently selected from the group consisting of Cl, F, OH, SH, H, alkyl, CN, Br, R 47 , OR 47 , C(O)R 47  and HNR 47 , wherein R 47  is a C1-C4 alkyl, wherein R 41  and R 43 , R 42  and R 44 , R 43  and R 45 , R 44  and R 46 , R 41  and R 45 , or R 42  and R 46  optionally form a substituted or unsubstituted methylene link, an ether link, a thia link or an amino link, and wherein R 43  and R 44  or R 45  and R 46  optionally form a ketone; 
           wherein both R groups from one carbon on the ring are not OH; 
           F is 
         
       
       
         
           
           
               
               
           
         
         
            where: 
           R 51  and R 52  are independently selected from the group consisting of F, Cl, OH, SH, H, CN, OR 57 , C(O)R 57 , and NHR 57 , wherein R 57  is a C1-C4 alkyl, wherein R 51  and R 52  optionally form a ketone, a spirocyclopropyl group or are joined by —OCH 2 —, —CH 2 O—, —SCH 2 — or —CH 2 S—; and 
           R 53  and R 54  are independently selected from the group consisting of F, Cl, Br, OR 57 , H and CN, wherein R 57  is a C1-C4 alkyl; 
           wherein both R groups from one carbon on the ring are not OH; 
           G is 
         
       
       
         
           
           
               
               
           
         
         
            where: 
           Y=bond or CH 2 ; and 
           R 61 , R 62 , R 63 , R 64  and R 65  are independently selected from the group consisting of Cl, F, OH, SH, H, alkyl, CN, Br, R 67 , OR 67 , C(O)R 67  and HNR 67 , wherein R 67  is a C1-C4 alkyl, wherein R 61  and R 63  or R 62  and R 64  optionally form a ketone, wherein R 61  and R 53  or R 62  and R 64  optionally form a substituted or unsubstituted methylene link, an ether link, a thia link or an amino link, and wherein R 61  and R 62  or R 63  and R 64  optionally form a spirocyclopropyl group or are linked by —OCH 2 — or —CH 2 O— or —SCH 2 — or —CH 2 S—; 
           wherein no more than two of R 61 , R 62 , R 63 , R 64  and R 65  are SH; and 
           wherein both R groups from one carbon on the ring are not OH; 
           H is 
         
       
       
         
           
           
               
               
           
         
         
            where: 
           R 71 , R 72 , R 73  and R 74  are independently selected from the group consisting of Cl, F, OH, SH, H, alkyl, CN, Br, R 77 , OR 77 , C(O)R 77 , and HNR 77 , wherein R 77  is a C1-C4 alkyl, and wherein R 71  and R 72  or R 73  and R 74  optionally form a ketone; 
           wherein both R groups from one carbon on the ring are not OH; and 
           I is 
         
       
       
         
           
           
               
               
           
         
         
            where: 
           R 81  is OH and R 82  is selected from the group consisting of H, OH, halo, thiol, and alkyl; 
         
         R 9 =H, OH, OCH 3 ; 
         R 10 =H or CH 3 ; 
         R 11 =H, H or ═O; 
         with the provisos that when R 1  is A and one or two of R 21 , R 22 , R 23 , R 24 , R 25 , and R 26  is OH, then the remainder of R 21 , R 22 , R 25 , and R 26  cannot all be H; 
         and with the proviso that when R 1  is A and one of R 21 , R 22 , R 25 , and R 26  is OCH 3  or Me, and one of R 23  and R 24  is OH, then the remainder of R 21 , R 22 , R 25 , and R 26  cannot all be H. 
       
     
     
         68 . A compound according to  claim 67  wherein R 1  is selected from the group consisting of A, B, D, E, G and H; and
 i) two of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are F, one of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  is OH and the remainder of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are H;   ii) two of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  are F, one of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  is OH and the remainder of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  are H;   iii) two of R 61 , R 62 , R 63 , R 64  and R 65  are F, one of R 61 , R 62 , R 63 , R 64  and R 65  is OH and the remainder of R 61 , R 62 , R 63 , R 64  and R 65  are H; and   iv) two of R 71 , R 72 , R 73  and R 74  are F, one of R 71 , R 72 , R 73  and R 74  is OH and the remainder of R 71 , R 72 , R 73  and R 74  are H.   
     
     
         69 . A compound according to  claim 67  wherein R 1  is selected from the group consisting of A, B, D, E, G, and H; and
 i) one of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  is SH, F, Cl or alkyl, wherein the alkyl group contains no more than 4 carbon atoms and has a linear length of no more than 3 carbon atoms; one of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  is OH, wherein the OH does not originate from the same carbon atom as the SH, F, Cl or alkyl group; and the remainder of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are H;   ii) one of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  is SH, F, Cl or alkyl, wherein the alkyl group contains no more than 4 carbon atoms and has a linear length of no more than 3 carbon atoms; one of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  is OH, wherein the OH does not originate from the same carbon atom as the SH, F, Cl or alkyl group; and the remainder of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  are H;   iii) one of R 61 , R 62 , R 63 , R 64  and R 65  is SH, F, Cl or alkyl, wherein the alkyl group contains no more than 4 carbon atoms and has a linear length of no more than 3 carbon atoms; one of R 61 , R 62 , R 63 , R 64  and R 65  is OH, wherein the OH does not originate from the same carbon atom as the SH, F, Cl or alkyl group; and the remainder of R 61 , R 62 , R 63 , R 64  and R 65  are H; and   iv) one of R 71 , R 72 , R 73  and R 74  is SH, F, Cl or alkyl, wherein the alkyl group contains no more than 4 carbon atoms and has a linear length of no more than 3 carbon atoms; one of R 71 , R 72 , R 73  and R 74  is OH, wherein the OH does not originate from the same carbon atom as the SH, F, Cl or alkyl group; and the remainder of R 71 , R 72 , R 73  and R 74  are H.   
     
     
         70 . A compound according to  claim 67  wherein R 1  is selected from the group consisting of A, B, D, E, G, and H; and
 i) two of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are OH, one of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  is Cl or F, and the remainder of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are H;   ii) two of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  are OH, one of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  is Cl or F, and the remainder of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  are H;   iii) two of R 61 , R 62 , R 63 , R 64  and R 65  are OH, one of R 61 , R 62 , R 63 , R 64  and R 65  is Cl or F, and the remainder of R 61 , R 62 , R 63 , R 64  and R 65  are H; and   iv) two of R 71 , R 72 , R 73  and R 74  are OH, one of R 71 , R 72 , R 73  and R 74  is Cl or F, and the remainder of R 71 , R 72 , R 73  and R 74  are H.   
     
     
         71 . A compound according to  claim 67  wherein R 1  is G or H, and
 i) one of R 61 , R 62 , R 63 , R 64  and R 65  is OH and the remainder of R 61 , R 62 , R 63 , P 64  and R 65  are H; and   ii) one of R 71 , R 72 , R 73  and R 74  is OH and the remainder of R 71 , R 72 , R 73  and R 74  are H.   
     
     
         72 . A compound according to  claim 67  wherein R 1  is selected from the group consisting of A, B, D, E, G, and H; and
 i) two of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are OH and the remainder of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are H;   ii) two of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  are OH and the remainder of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  are H;   iii) two of R 61 , R 62 , R 63 , R 64  and R 65  are OH and the remainder of R 61 , R 62 , R 63 , R 64  and R 65  are H; and   iv) two of R 71 , R 72 , R 73  and R 74  are OH and the remainder of R 71 , R 72 , R 73  and R 74  are H.   
     
     
         73 . A compound according to  claim 67  wherein R 1  is C or F, and
 i) one of R 33  and R 34  is F, Cl or alkyl, wherein the alkyl group contains no more than 4 carbon atoms and has a linear length of no more than 3 carbon atoms; one of R 31  and R 32  is OH; and the remainder of R 31 , R 32 , R 33  and R 34  are H; and   ii) one of R 51 , R 52 , R 53  and R 54  is F, Cl or alkyl, wherein the alkyl group contains no more than 4 carbon atoms and have a linear length of no more than 3 carbon atoms; one of R 51 , R 52 , R 53  and R 54  is OH, wherein the OH does not originate from the same carbon atom as the SH, F, Cl or alkyl group; and the remainder of R 51 , R 52 , R 53  and R 54  are H.   
     
     
         74 . A method of generating a compound according to  claim 67 , said method comprising:
 (a) generating a recombinant strain in which at least the rapK homologue has been deleted or inactivated; and   (b) feeding a non-natural starter unit to said strain.   
     
     
         75 . The method according to  claim 74 , wherein the recombinant strain of part (a) is made according to a method comprising:
 (a) constructing a conjugative deletion plasmid in an  E. coli  strain that is dam − , dcm −  or dam −  and dcm − .   (b) generation of spores from said strain suitable for conjugation wherein said strain is grown at a humidity of between 10% and 40% and the spores are harvested at between 5 and 30 days;   (c) conjugating the  E. coli  strain of step (a) with the spores from step (b) on a medium that comprises per litre:
 i) 0.5 g to 5 g corn steep powder, 
 ii) 0.1 g to 5 g Yeast extract, 
 iii) 0.1 g to 10 g calcium carbonate; and 
 iv) 0.01 g to 0.5 g iron sulphate; 
   
       said medium additionally containing BACTO-agar and starch and having been dried to result in 1-20% weight loss; and
 (d) optionally culturing the recombinant strain under conditions suitable for polyketide production. 
 
     
     
         76 . The method according to  claim 75 , wherein the strain is selected from the group consisting of  Streptomyces hygroscopicus  subsp.  hygroscopicus  NRRL 5491,  Actinoplanes  sp. N902-109 FERM BP-3832,  Streptomyces  sp. AA6554,  Streptomyces hygroscopicus  var.  ascomyceticus  MA 6475 ATCC 14891,  Streptomyces hygroscopicus  var.  ascomyceticus  MA 6678 ATCC 55087,  Streptomyces hygroscopicus  var.  ascomyceticus  MA 6674,  Streptomyces hygroscopicus  var.  ascomyceticus  ATCC 55276,  Streptomyces hygroscopicus  subsp.  ascomyceticus  ATCC 14891,  Streptomyces tsukubaensis  No. 9993 FERM BP-927,  Streptomyces hygroscopicus  subsp.  yakushimaensis, Streptomyces  sp. DSM 4137,  Streptomyces  sp. DSM 7348 , Micromonospora  n.sp. A92-306401 DSM 8429 and  Streptomyces  sp. MA 6858 ATCC 55098. 
     
     
         77 . The method according to  claim 76 , wherein the process of restoring the deleted or inactivated genes comprises:
 (a) constructing a gene cassette which contains one or more of the deleted or inactivated genes, optionally in an expression vector; and   (b) transforming said recombinant strain that contains biosynthetic clusters that encode FKBP-ligands with said gene cassette.   
     
     
         78 . A method for the treatment of cancer in a patient in need of said treatment, comprising administration of a medicament comprising the compound of  claim 67 . 
     
     
         79 . A method for the treatment of a fungal infection in a patient in need of said treatment, comprising administration of a medicament of the compound of  claim 67 . 
     
     
         80 . A method for inducing or maintaining immunosuppression in a patient in need thereof comprising administration of a medicament comprising the compound of  claim 67 . 
     
     
         81 . The method of  claim 80 , wherein said patient has a disease selected from the group consisting of autoimmune, proliferative, and hyperproliferative disease. 
     
     
         82 . The method of  claim 80 , wherein said disease is selected from the group consisting of: diabetes, acute or chronic rejection of an organ or tissue transplant, asthma, tumours, psoriasis, eczema, rheumatoid arthritis, fibrosis, and allergies. 
     
     
         83 . A stent comprising a compound according to  claim 67 . 
     
     
         84 . A compound of the formula: 
       
         
           
           
               
               
           
         
       
       wherein: 
       
         
           
           
               
               
           
         
         R 2 =H, alkyl, halo, hydroxyl, or thiol; 
         R 3 =H, alkyl, halo, hydroxyl, or thiol; 
         R 4 =H, alkyl, halo, hydroxyl, or thiol; 
         R 5 =OCH 3 , CH 3  or H; 
         R 6 =OCH 3 , CH 3  or H; 
         R 7 =CH 2 CH 3  or CH 2 CH═CH 2 ; 
         R 8 =OH; 
         R 9 =H, OH, halo, thiol, or alkyl; 
         Z=keto or CH 2 ; 
         X=X′=bond; X=bond and X′=CH 2 , S, O; or X=CH 2 , S, O, or a fused cyclopropyl unit and X′=bond; 
         with the proviso that A is not 3-cis,4-trans-dihydroxycyclohexane. 
       
     
     
         85 . A compound according to  claim 84 , wherein R 1  is A, B, C, or E, and R 9  is halo. 
     
     
         86 . A compound according to  claim 84  which is selected from the group consisting of: 31-desmethoxy-FK520, 31-desmethoxy-31-cis-hydroxy-32-trans-hydroxy-FK520, 31-desmethoxy-31-cis-hydroxy-32-cis-hydroxy-FK520, 31-desmethoxy-31-trans-hydroxy-32-trans-hydroxy-FK520, 31-O-desmethyl-32-dehydroxy-FK520, 31-O-desmethyl-FK520, 31-desmethoxy-31-methyl-FK520, 31-O-desmethyl-32-dehydroxy-32-methyl-FK520, 31-O-desmethyl-32-dehydroxy-32-fluoro-FK520, 31-desmethoxy-31-fluoro-FK520, 31-O-desmethyl-32-dehydroxy-32-chloro-FK520, 31-desmethoxy-31-chloro-FK520, 31-O-desmethyl-32-dehydroxy-32-tert-butyl-FK520, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-FK520, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-FK520, 9-deoxo-31-desmethoxy-FK520, 9-deoxo-31-desmethoxy-31-cis-hydroxy-32-trans-hydroxy-FK520, 9-deoxo-31-desmethoxy-31-cis-hydroxy-32-cis-hydroxy-FK520, 9-deoxo-31-desmethoxy-31-trans-hydroxy-32-trans-hydroxy-FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-FK520, 9-deoxo-31-O-desmethyl-FK520, 9-deoxo-31-desmethoxy-31-methyl-FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-methyl-FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-fluoro-FK520, 9-deoxo-31-desmethoxy-31-fluoro-FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-chloro-FK520, 9-deoxo-31-desmethoxy-31-chloro-FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-tert-butyl-FK520, 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-FK520, 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-FK520, 30-desmethoxy-prolyl-FK520, 30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-prolyl-FK520, 30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-prolyl-FK520, 30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-prolyl-FK520, 30-O-desmethyl-prolyl-FK520, 30-desmethoxy-30-methyl-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-methyl-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-fluoro-prolyl-FK520, 30-desmethoxy-30-fluoro-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-chloro-prolyl-FK520, 30-desmethoxy-30-chloro-prolyl-FK520, 30-desmethyl-31-dehydroxy-31-tert-butyl-prolyl-FK520, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-FK520, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-FK520, 8-deoxo-30-desmethoxy-31-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-prolyl-FK520, 8-deoxo-30-desmethoxy-30-methyl-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-methyl-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-fluoro-prolyl-FK520, 8-deoxo-30-desmethoxy-30-fluoro-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-chloro-prolyl-FK520, 8-deoxo-30-desmethoxy-30-chloro-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-tert-butyl-prolyl-FK520, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-prolyl-FK520, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-prolyl-FK520, 30-desmethoxy-3-hydroxy-prolyl-FK520, 30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK520, 30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-3-hydroxy-prolyl-FK520, 30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-3-hydroxy-prolyl-FK520, 30-O-desmethyl-3-hydroxy-prolyl-FK520, 30-desmethoxy-30-methyl-3-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-methyl-3-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-fluoro-3-hydroxy-prolyl-FK520, 30-desmethoxy-30-fluoro-3-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-chloro-3-hydroxy-prolyl-FK520, 30-desmethoxy-30-chloro-3-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-tert-butyl-3-hydroxy-prolyl-FK520, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-3-hydroxy-prolyl-FK520, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-3-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-31-hydroxy-3-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-3-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-3-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-3-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-methyl-3-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-methyl-3-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-fluoro-3-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-fluoro-3-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-chloro-3-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-chloro-3-hydroxy-3-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-tert-butyl-3-hydroxy-prolyl-FK520, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-3-hydroxy-prolyl-FK520, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-3-hydroxy-prolyl-FK520, 30-desmethoxy-4-hydroxy-prolyl-FK520, 30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK520, 30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-4-hydroxy-prolyl-FK520, 30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-4-hydroxy-prolyl-FK520, 30-O-desmethyl-4-hydroxy-prolyl-FK520, 30-desmethoxy-30-methyl-4-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-methyl-4-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-fluoro-4-hydroxy-prolyl-FK520, 30-desmethoxy-30-fluoro-4-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-chloro-4-hydroxy-prolyl-FK520, 30-desmethoxy-30-chloro-4-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-tert-butyl-4-hydroxy-prolyl-FK520, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-4-hydroxy-prolyl-FK520, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-4-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-31-hydroxy-4-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-4-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-4-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-4-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-methyl-4-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-methyl-4-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-fluoro-4-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-fluoro-4-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-chloro-4-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-chloro-3-hydroxy-4-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-tert-butyl-4-hydroxy-prolyl-FK520, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-4-hydroxy-prolyl-FK520, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-4-hydroxy-prolyl-FK520, 31-desmethoxy-trans-3-bicyclo[3.1.0.]FK520, 31-desmethoxy-31-cis-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK520, 31-desmethoxy-31-cis-hydroxy-32-cis-hydroxy-trans-3-bicyclo[3.1.0.]FK520, 31-desmethoxy-31-trans-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK520, 31-O-desmethyl-32-dehydroxy-trans-3-bicyclo[3.1.0.]FK520, 31-O-desmethyl-trans-3-bicyclo[3.1.0.]FK520, 31-desmethoxy-31-methyl-trans-3-bicyclo[3.1.0.]FK520, 31-O-desmethyl-32-dehydroxy-32-methyl-trans-3-bicyclo[3.1.0.]FK520, 31-O-desmethyl-32-dehydroxy-32-fluoro-trans-3-bicyclo[3.1.0.]FK520, 31-desmethoxy-31-fluoro-trans-3-bicyclo[3.1.0.]FK520, 31-O-desmethyl-32-dehydroxy-32-chloro-trans-3-bicyclo[3.1.0.]FK520, 31-desmethoxy-31-chloro-trans-3-bicyclo[3.1.0.]FK520, 31-O-desmethyl-32-dehydroxy-32-tert-butyl-trans-3-bicyclo[3.1.0.]FK520, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-trans-3-bicyclo[3.1.0.]FK520, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-desmethoxy-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-desmethoxy-31-cis-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-desmethoxy-31-cis-hydroxy-32-cis-hydroxy-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-desmethoxy-31-trans-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-O-desmethyl-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-desmethoxy-31-methyl-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-methyl-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-fluoro-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-desmethoxy-31-fluoro-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-chloro-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-desmethoxy-31-chloro-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-tert-butyl-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-trans-3-bicyclo[3.1.0.]FK520, and 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-trans-3-bicyclo[3.1.0.]FK520. 
     
     
         87 . A compound according to  claim 86  which is selected from the group consisting of: 31-desmethoxy-31-cis-hydroxy-32-trans-hydroxy-FK520, 31-desmethoxy-31-cis-hydroxy-32-cis-hydroxy-FK520, 31-desmethoxy-31-trans-hydroxy-32-trans-hydroxy-FK520, 31-desmethoxy-31-methyl-FK520, 31-desmethoxy-31-fluoro-FK520, 31-desmethoxy-31-chloro-FK520, 31-O-desmethyl-32-dehydroxy-32-tert-butyl-FK520, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-FK520, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-FK520, 9-deoxo-31-desmethoxy-31-cis-hydroxy-32-trans-hydroxy-FK520, 9-deoxo-31-desmethoxy-31-cis-hydroxy-32-cis-hydroxy-FK520, 9-deoxo-31-desmethoxy-31-trans-hydroxy-32-trans-hydroxy-FK520, 9-deoxo-31-desmethoxy-31-methyl-FK520, 9-deoxo-31-desmethoxy-31-fluoro-FK520, 9-deoxo-31-desmethoxy-31-chloro-FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-tert-butyl-FK520, 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-FK520, 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-FK520, 30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-prolyl-FK520, 30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-prolyl-FK520, 30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-prolyl-FK520, 30-desmethoxy-30-methyl-prolyl-FK520, 30-desmethoxy-30-fluoro-prolyl-FK520, 30-desmethoxy-30-chloro-prolyl-FK520, 30-desmethyl-31-dehydroxy-31-tert-butyl-prolyl-FK520, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-FK520, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-FK520, 8-deoxo-30-desmethoxy-31-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-prolyl-FK520, 8-deoxo-30-desmethoxy-30-methyl-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-methyl-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-fluoro-prolyl-FK520, 8-deoxo-30-desmethoxy-30-fluoro-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-chloro-prolyl-FK520, 8-deoxo-30-desmethoxy-30-chloro-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-tert-butyl-prolyl-FK520, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-prolyl-FK520, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-prolyl-FK520, 30-desmethoxy-3-hydroxy-prolyl-FK520, 30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK520, 30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-3-hydroxy-prolyl-FK520, 30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-3-hydroxy-prolyl-FK520, 30-O-desmethyl-3-hydroxy-prolyl-FK520, 30-desmethoxy-30-methyl-3-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-methyl-3-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-fluoro-3-hydroxy-prolyl-FK520, 30-desmethoxy-30-fluoro-3-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-chloro-3-hydroxy-prolyl-FK520, 30-desmethoxy-30-chloro-3-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-tert-butyl-3-hydroxy-prolyl-FK520, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-3-hydroxy-prolyl-FK520, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-3-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-31-hydroxy-3-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-3-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-3-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-3-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-methyl-3-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-methyl-3-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-fluoro-3-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-fluoro-3-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-chloro-3-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-chloro-3-hydroxy-3-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-tert-butyl-3-hydroxy-prolyl-FK520, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-3-hydroxy-prolyl-FK520, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-3-hydroxy-prolyl-FK520, 30-desmethoxy-4-hydroxy-prolyl-FK520, 30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK520, 30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-4-hydroxy-prolyl-FK520, 30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-4-hydroxy-prolyl-FK520, 30-O-desmethyl-4-hydroxy-prolyl-FK520, 30-desmethoxy-30-methyl-4-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-methyl-4-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-fluoro-4-hydroxy-prolyl-FK520, 30-desmethoxy-30-fluoro-4-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-chloro-4-hydroxy-prolyl-FK520, 30-desmethoxy-30-chloro-4-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-tert-butyl-4-hydroxy-prolyl-FK520, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-4-hydroxy-prolyl-FK520, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-4-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-31-hydroxy-4-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-4-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-4-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-4-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-methyl-4-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-methyl-4-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-fluoro-4-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-fluoro-4-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-chloro-4-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-chloro-3-hydroxy-4-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-tert-butyl-4-hydroxy-prolyl-FK520, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-4-hydroxy-prolyl-FK520, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-4-hydroxy-prolyl-FK520, 31-desmethoxy-trans-3-bicyclo[3.1.0.]FK520, 31-desmethoxy-31-cis-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK520, 31-desmethoxy-31-cis-hydroxy-32-cis-hydroxy-trans-3-bicyclo[3.1.0.]FK520, 31-desmethoxy-31-trans-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK520, 31-O-desmethyl-32-dehydroxy-trans-3-bicyclo[3.1.0.]FK520, 31-O-desmethyl-trans-3-bicyclo[3.1.0.]FK520, 31-desmethoxy-31-methyl-trans-3-bicyclo[3.1.0.]FK520, 31-O-desmethyl-32-dehydroxy-32-methyl-trans-3-bicyclo[3.1.0.]FK520, 31-O-desmethyl-32-dehydroxy-32-fluoro-trans-3-bicyclo[3.1.0.]FK520, 31-desmethoxy-31-fluoro-trans-3-bicyclo[3.1.0.]FK520, 31-O-desmethyl-32-dehydroxy-32-chloro-trans-3-bicyclo[3.1.0.]FK520, 31-desmethoxy-31-chloro-trans-3-bicyclo[3.1.0.]FK520, 31-O-desmethyl-32-dehydroxy-32-tert-butyl-trans-3-bicyclo[3.1.0.]FK520, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-trans-3-bicyclo[3.1.0.]FK520, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-desmethoxy-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-desmethoxy-31-cis-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-desmethoxy-31-cis-hydroxy-32-cis-hydroxy-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-desmethoxy-31-trans-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-O-desmethyl-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-desmethoxy-31-methyl-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-methyl-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-fluoro-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-desmethoxy-31-fluoro-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-chloro-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-desmethoxy-31-chloro-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-tert-butyl-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-trans-3-bicyclo[3.1.0.]FK520, and 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-trans-3-bicyclo[3.1.0.]FK520. 
     
     
         88 . A compound according to  claim 87  which is selected from the group consisting of: 31-desmethoxy-31-methyl-FK520, 31-desmethoxy-31-fluoro-FK520, 31-desmethoxy-31-chloro-FK520, 31-O-desmethyl-32-dehydroxy-32-tert-butyl-FK520, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-FK520, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-FK520, 9-deoxo-31-desmethoxy-31-methyl-FK520, 9-deoxo-31-desmethoxy-31-fluoro-FK520, 9-deoxo-31-desmethoxy-31-chloro-FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-tert-butyl-FK520, 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-FK520, 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-FK520, 30-desmethoxy-30-methyl-prolyl-FK520, 30-desmethoxy-30-fluoro-prolyl-FK520, 30-desmethoxy-30-chloro-prolyl-FK520, 30-desmethyl-31-dehydroxy-31-tert-butyl-prolyl-FK520, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-FK520, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-FK520, 8-deoxo-30-desmethoxy-31-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-prolyl-FK520, 8-deoxo-30-desmethoxy-30-methyl-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-methyl-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-fluoro-prolyl-FK520, 8-deoxo-30-desmethoxy-30-fluoro-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-chloro-prolyl-FK520, 8-deoxo-30-desmethoxy-30-chloro-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-tert-butyl-prolyl-FK520, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-prolyl-FK520, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-prolyl-FK520, 30-desmethoxy-3-hydroxy-prolyl-FK520, 30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK520, 30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-3-hydroxy-prolyl-FK520, 30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-3-hydroxy-prolyl-FK520, 30-O-desmethyl-3-hydroxy-prolyl-FK520, 30-desmethoxy-30-methyl-3-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-methyl-3-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-fluoro-3-hydroxy-prolyl-FK520, 30-desmethoxy-30-fluoro-3-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-chloro-3-hydroxy-prolyl-FK520, 30-desmethoxy-30-chloro-3-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-tert-butyl-3-hydroxy-prolyl-FK520, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-3-hydroxy-prolyl-FK520, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-3-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-31-hydroxy-3-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-3-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-3-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-3-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-methyl-3-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-methyl-3-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-fluoro-3-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-fluoro-3-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-chloro-3-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-chloro-3-hydroxy-3-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-tert-butyl-3-hydroxy-prolyl-FK520, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-3-hydroxy-prolyl-FK520, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-3-hydroxy-prolyl-FK520, 30-desmethoxy-4-hydroxy-prolyl-FK520, 30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK520, 30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-4-hydroxy-prolyl-FK520, 30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-4-hydroxy-prolyl-FK520, 30-O-desmethyl-4-hydroxy-prolyl-FK520, 30-desmethoxy-30-methyl-4-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-methyl-4-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-fluoro-4-hydroxy-prolyl-FK520, 30-desmethoxy-30-fluoro-4-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-chloro-4-hydroxy-prolyl-FK520, 30-desmethoxy-30-chloro-4-hydroxy-prolyl-FK520, 30-O-desmethyl-31-dehydroxy-31-tert-butyl-4-hydroxy-prolyl-FK520, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-4-hydroxy-prolyl-FK520, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-4-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-31-hydroxy-4-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-4-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-4-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-4-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-methyl-4-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-methyl-4-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-fluoro-4-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-fluoro-4-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-chloro-4-hydroxy-prolyl-FK520, 8-deoxo-30-desmethoxy-30-chloro-3-hydroxy-4-hydroxy-prolyl-FK520, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-tert-butyl-4-hydroxy-prolyl-FK520, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-4-hydroxy-prolyl-FK520, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-4-hydroxy-prolyl-FK520, 31-desmethoxy-trans-3-bicyclo[3.1.0.]FK520, 31-desmethoxy-31-cis-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK520, 31-desmethoxy-31-cis-hydroxy-32-cis-hydroxy-trans-3-bicyclo[3.1.0.]FK520, 31-desmethoxy-31-trans-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK520, 31-O-desmethyl-32-dehydroxy-trans-3-bicyclo[3.1.0.]FK520, 31-O-desmethyl-trans-3-bicyclo[3.1.0.]FK520, 31-desmethoxy-31-methyl-trans-3-bicyclo[3.1.0.]FK520, 31-O-desmethyl-32-dehydroxy-32-methyl-trans-3-bicyclo[3.1.0.]FK520, 31-O-desmethyl-32-dehydroxy-32-fluoro-trans-3-bicyclo[3.1.0.]FK520, 31-desmethoxy-31-fluoro-trans-3-bicyclo[3.1.0.]FK520, 31-O-desmethyl-32-dehydroxy-32-chloro-trans-3-bicyclo[3.1.0.]FK520, 31-desmethoxy-31-chloro-trans-3-bicyclo[3.1.0.]FK520, 31-O-desmethyl-32-dehydroxy-32-tert-butyl-trans-3-bicyclo[3.1.0.]FK520, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-trans-3-bicyclo[3.1.0.]FK520, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-desmethoxy-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-desmethoxy-31-cis-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-desmethoxy-31-cis-hydroxy-32-cis-hydroxy-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-desmethoxy-31-trans-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-O-desmethyl-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-desmethoxy-31-methyl-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-methyl-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-fluoro-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-desmethoxy-31-fluoro-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-chloro-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-desmethoxy-31-chloro-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-tert-butyl-trans-3-bicyclo[3.1.0.]FK520, 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-trans-3-bicyclo[3.1.0.]FK520, and 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-trans-3-bicyclo[3.1.0.]FK520. 
     
     
         89 . A compound according to claim  1  which is selected from the group consisting of: 31-desmethoxy-FK506, 31-desmethoxy-31-cis-hydroxy-32-trans-hydroxy-FK506, 31-desmethoxy-31-cis-hydroxy-32-cis-hydroxy-FK506, 31-desmethoxy-31-trans-hydroxy-32-trans-hydroxy-FK506, 31-O-desmethyl-32-dehydroxy-FK506, 31-O-desmethyl-FK506, 31-desmethoxy-31-methyl-FK506, 31-O-desmethyl-32-dehydroxy-32-methyl-FK506, 31-O-desmethyl-32-dehydroxy-32-fluoro-FK506, 31-desmethoxy-31-fluoro-FK506, 31-O-desmethyl-32-dehydroxy-32-chloro-FK506, 31-desmethoxy-31-chloro-FK506, 31-O-desmethyl-32-dehydroxy-32-tert-butyl-FK506, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-FK506, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-FK506, 9-deoxo-31-desmethoxy-FK506, 9-deoxo-31-desmethoxy-31-cis-hydroxy-32-trans-hydroxy-FK506, 9-deoxo-31-desmethoxy-31-cis-hydroxy-32-cis-hydroxy-FK506, 9-deoxo-31-desmethoxy-31-trans-hydroxy-32-trans-hydroxy-FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-FK506, 9-deoxo-31-O-desmethyl-FK506, 9-deoxo-31-desmethoxy-31-methyl-FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-methyl-FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-fluoro-FK506, 9-deoxo-31-desmethoxy-31-fluoro-FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-chloro-FK506, 9-deoxo-31-desmethoxy-31-chloro-FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-tert-butyl-FK506, 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-FK506, 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-FK506, 30-desmethoxy-prolyl-FK506, 30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-prolyl-FK506, 30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-prolyl-FK506, 30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-prolyl-FK506, 30-O-desmethyl-prolyl-FK506, 30-desmethoxy-30-methyl-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-methyl-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-fluoro-prolyl-FK506, 30-desmethoxy-30-fluoro-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-chloro-prolyl-FK506, 30-desmethoxy-30-chloro-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-tert-butyl-prolyl-FK506, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-FK506, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-FK506, 8-deoxo-30-desmethoxy-31-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-prolyl-FK506, 8-deoxo-30-desmethoxy-30-methyl-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-methyl-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-fluoro-prolyl-FK506, 8-deoxo-30-desmethoxy-30-fluoro-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-chloro-prolyl-FK506, 8-deoxo-30-desmethoxy-30-chloro-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-tert-butyl-prolyl-FK506, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-prolyl-FK506, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-prolyl-FK506, 30-desmethoxy-3-hydroxy-prolyl-FK506, 30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK506, 30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-3-hydroxy-prolyl-FK506, 30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-3-hydroxy-prolyl-FK506, 30-O-desmethyl-3-hydroxy-prolyl-FK506, 30-desmethoxy-30-methyl-3-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-methyl-3-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-fluoro-3-hydroxy-prolyl-FK506, 30-desmethoxy-30-fluoro-3-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-chloro-3-hydroxy-prolyl-FK506, 30-desmethoxy-30-chloro-3-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-tert-butyl-3-hydroxy-prolyl-FK506, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-3-hydroxy-prolyl-FK506, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-3-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-31-hydroxy-3-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-3-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-3-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-3-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-methyl-3-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-methyl-3-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-fluoro-3-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-fluoro-3-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-chloro-3-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-chloro-3-hydroxy-3-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-tert-butyl-3-hydroxy-prolyl-FK506, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-3-hydroxy-prolyl-FK506, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-3-hydroxy-prolyl-FK506, 30-desmethoxy-4-hydroxy-prolyl-FK506, 30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK506, 30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-4-hydroxy-prolyl-FK506, 30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-4-hydroxy-prolyl-FK506, 30-O-desmethyl-4-hydroxy-prolyl-FK506, 30-desmethoxy-30-methyl-4-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-methyl-4-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-fluoro-4-hydroxy-prolyl-FK506, 30-desmethoxy-30-fluoro-4-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-chloro-4-hydroxy-prolyl-FK506, 30-desmethoxy-30-chloro-4-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-tert-butyl-4-hydroxy-prolyl-FK506, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-4-hydroxy-prolyl-FK506, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-4-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-31-hydroxy-4-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-4-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-4-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-4-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-methyl-4-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-methyl-4-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-fluoro-4-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-fluoro-4-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-chloro-4-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-chloro-3-hydroxy-4-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-tert-butyl-4-hydroxy-prolyl-FK506, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-4-hydroxy-prolyl-FK506, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-4-hydroxy-prolyl-FK506, 31-desmethoxy-trans-3-bicyclo[3.1.0.]FK506, 31-desmethoxy-31-cis-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK506, 31-desmethoxy-31-cis-hydroxy-32-cis-hydroxy-trans-3-bicyclo[3.1.0.]FK506, 31-desmethoxy-31-trans-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK506, 31-O-desmethyl-32-dehydroxy-trans-3-bicyclo[3.1.0.]FK506, 31-O-desmethyl-trans-3-bicyclo[3.1.0.]FK506, 31-desmethoxy-31-methyl-trans-3-bicyclo[3.1.0.]FK506, 31-O-desmethyl-32-dehydroxy-32-methyl-trans-3-bicyclo[3.1.0.]FK506, 31-O-desmethyl-32-dehydroxy-32-fluoro-trans-3-bicyclo[3.1.0.]FK506, 31-desmethoxy-31-fluoro-trans-3-bicyclo[3.1.0.]FK506, 31-O-desmethyl-32-dehydroxy-32-chloro-trans-3-bicyclo[3.1.0.]FK506, 31-desmethoxy-31-chloro-trans-3-bicyclo[3.1.0.]FK506, 31-O-desmethyl-32-dehydroxy-32-tert-butyl-trans-3-bicyclo[3.1.0.]FK506, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-trans-3-bicyclo[3.1.0.]FK506, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-desmethoxy-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-desmethoxy-31-cis-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-desmethoxy-31-cis-hydroxy-32-cis-hydroxy-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-desmethoxy-31-trans-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-O-desmethyl-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-desmethoxy-31-methyl-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-methyl-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-fluoro-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-desmethoxy-31-fluoro-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-chloro-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-desmethoxy-31-chloro-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-tert-butyl-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-trans-3-bicyclo[3.1.0.]FK506, and 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-trans-3-bicyclo[3.1.0.]FK506. 
     
     
         90 . A compound according to  claim 89  which is selected from the group consisting of: 31-desmethoxy-31-cis-hydroxy-32-trans-hydroxy-FK506, 31-desmethoxy-31-cis-hydroxy-32-cis-hydroxy-FK506, 31-desmethoxy-31-trans-hydroxy-32-trans-hydroxy-FK506, 31-desmethoxy-31-methyl-FK506, 31-O-desmethyl-32-dehydroxy-32-tert-butyl-FK506, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-FK506, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-FK506, 9-deoxo-31-desmethoxy-31-cis-hydroxy-32-trans-hydroxy-FK506, 9-deoxo-31-desmethoxy-31-cis-hydroxy-32-cis-hydroxy-FK506, 9-deoxo-31-desmethoxy-31-trans-hydroxy-32-trans-hydroxy-FK506, 9-deoxo-31-desmethoxy-31-methyl-FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-tert-butyl-FK506, 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-FK506, 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-FK506, 30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-prolyl-FK506, 30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-prolyl-FK506, 30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-prolyl-FK506, 30-desmethoxy-30-methyl-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-tert-butyl-prolyl-FK506, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-FK506, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-FK506, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-methyl-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-tert-butyl-prolyl-FK506, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-prolyl-FK506, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-prolyl-FK506, 30-desmethoxy-3-hydroxy-prolyl-FK506, 30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK506, 30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-3-hydroxy-prolyl-FK506, 30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-3-hydroxy-prolyl-FK506, 30-O-desmethyl-3-hydroxy-prolyl-FK506, 30-desmethoxy-30-methyl-3-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-methyl-3-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-fluoro-3-hydroxy-prolyl-FK506, 30-desmethoxy-30-fluoro-3-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-chloro-3-hydroxy-prolyl-FK506, 30-desmethoxy-30-chloro-3-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-tert-butyl-3-hydroxy-prolyl-FK506, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-3-hydroxy-prolyl-FK506, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-3-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-31-hydroxy-3-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-3-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-3-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-3-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-methyl-3-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-methyl-3-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-fluoro-3-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-fluoro-3-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-chloro-3-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-chloro-3-hydroxy-3-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-tert-butyl-3-hydroxy-prolyl-FK506, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-3-hydroxy-prolyl-FK506, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-3-hydroxy-prolyl-FK506, 30-desmethoxy-4-hydroxy-prolyl-FK506, 30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK506, 30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-4-hydroxy-prolyl-FK506, 30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-4-hydroxy-prolyl-FK506, 30-O-desmethyl-4-hydroxy-prolyl-FK506, 30-desmethoxy-30-methyl-4-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-methyl-4-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-fluoro-4-hydroxy-prolyl-FK506, 30-desmethoxy-30-fluoro-4-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-chloro-4-hydroxy-prolyl-FK506, 30-desmethoxy-30-chloro-4-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-tert-butyl-4-hydroxy-prolyl-FK506, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-4-hydroxy-prolyl-FK506, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-4-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-31-hydroxy-4-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-4-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-4-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-4-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-methyl-4-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-methyl-4-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-fluoro-4-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-fluoro-4-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-chloro-4-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-chloro-3-hydroxy-4-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-tert-butyl-4-hydroxy-prolyl-FK506, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-4-hydroxy-prolyl-FK506, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-4-hydroxy-prolyl-FK506, 31-desmethoxy-trans-3-bicyclo[3.1.0.]FK506, 31-desmethoxy-31-cis-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK506, 31-desmethoxy-31-cis-hydroxy-32-cis-hydroxy-trans-3-bicyclo[3.1.0.]FK506, 31-desmethoxy-31-trans-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK506, 31-O-desmethyl-32-dehydroxy-trans-3-bicyclo[3.1.0.]FK506, 31-O-desmethyl-trans-3-bicyclo[3.1.0.]FK506, 31-desmethoxy-31-methyl-trans-3-bicyclo[3.1.0.]FK506, 31-O-desmethyl-32-dehydroxy-32-methyl-trans-3-bicyclo[3.1.0.]FK506, 31-O-desmethyl-32-dehydroxy-32-fluoro-trans-3-bicyclo[3.1.0.]FK506, 31-desmethoxy-31-fluoro-trans-3-bicyclo[3.1.0.]FK506, 31-O-desmethyl-32-dehydroxy-32-chloro-trans-3-bicyclo[3.1.0.]FK506, 31-desmethoxy-31-chloro-trans-3-bicyclo[3.1.0.]FK506, 31-O-desmethyl-32-dehydroxy-32-tert-butyl-trans-3-bicyclo[3.1.0.]FK506, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-trans-3-bicyclo[3.1.0.]FK506, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-desmethoxy-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-desmethoxy-31-cis-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-desmethoxy-31-cis-hydroxy-32-cis-hydroxy-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-desmethoxy-31-trans-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-O-desmethyl-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-desmethoxy-31-methyl-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-methyl-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-fluoro-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-desmethoxy-31-fluoro-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-chloro-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-desmethoxy-31-chloro-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-tert-butyl-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-trans-3-bicyclo[3.1.0.]FK506, and 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-trans-3-bicyclo[3.1.0.]FK506. 
     
     
         91 . A compound according to  claim 90  which is selected from the group consisting of: 31-desmethoxy-31-methyl-FK506, 31-O-desmethyl-32-dehydroxy-32-tert-butyl-FK506, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-FK506, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-FK506, 9-deoxo-31-desmethoxy-31-methyl-FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-tert-butyl-FK506, 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-FK506, 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-FK506, 30-desmethoxy-30-methyl-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-tert-butyl-prolyl-FK506, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-FK506, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-FK506, 8-deoxo-30-desmethoxy-30-methyl-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-tert-butyl-prolyl-FK506, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-prolyl-FK506, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-prolyl-FK506, 30-desmethoxy-3-hydroxy-prolyl-FK506, 30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK506, 30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-3-hydroxy-prolyl-FK506, 30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-3-hydroxy-prolyl-FK506, 30-O-desmethyl-3-hydroxy-prolyl-FK506, 30-desmethoxy-30-methyl-3-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-methyl-3-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-fluoro-3-hydroxy-prolyl-FK506, 30-desmethoxy-30-fluoro-3-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-chloro-3-hydroxy-prolyl-FK506, 30-desmethoxy-30-chloro-3-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-tert-butyl-3-hydroxy-prolyl-FK506, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-3-hydroxy-prolyl-FK506, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-3-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-31-hydroxy-3-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-3-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-3-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-3-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-3-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-methyl-3-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-methyl-3-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-fluoro-3-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-fluoro-3-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-chloro-3-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-chloro-3-hydroxy-3-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-tert-butyl-3-hydroxy-prolyl-FK506, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-3-hydroxy-prolyl-FK506, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-3-hydroxy-prolyl-FK506, 30-desmethoxy-4-hydroxy-prolyl-FK506, 30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK506, 30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-4-hydroxy-prolyl-FK506, 30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-4-hydroxy-prolyl-FK506, 30-O-desmethyl-4-hydroxy-prolyl-FK506, 30-desmethoxy-30-methyl-4-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-methyl-4-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-fluoro-4-hydroxy-prolyl-FK506, 30-desmethoxy-30-fluoro-4-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-chloro-4-hydroxy-prolyl-FK506, 30-desmethoxy-30-chloro-4-hydroxy-prolyl-FK506, 30-O-desmethyl-31-dehydroxy-31-tert-butyl-4-hydroxy-prolyl-FK506, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-4-hydroxy-prolyl-FK506, 28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-4-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-31-hydroxy-4-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-cis-hydroxy-31-cis-hydroxy-4-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-trans-hydroxy-31-trans-hydroxy-4-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-4-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-4-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-methyl-4-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-methyl-4-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-fluoro-4-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-fluoro-4-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-chloro-4-hydroxy-prolyl-FK506, 8-deoxo-30-desmethoxy-30-chloro-3-hydroxy-4-hydroxy-prolyl-FK506, 8-deoxo-30-O-desmethyl-31-dehydroxy-31-tert-butyl-4-hydroxy-prolyl-FK506, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-cycloheptyl)-4-hydroxy-prolyl-FK506, 8-deoxo-28-de(3-methoxy-4-hydroxy-cyclohexyl)-28-(hydroxy-norbornyl)-4-hydroxy-prolyl-FK506, 31-desmethoxy-trans-3-bicyclo[3.1.0.]FK506, 31-desmethoxy-31-cis-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK506, 31-desmethoxy-31-cis-hydroxy-32-cis-hydroxy-trans-3-bicyclo[3.1.0.]FK506, 31-desmethoxy-31-trans-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK506, 31-O-desmethyl-32-dehydroxy-trans-3-bicyclo[3.1.0.]FK506, 31-O-desmethyl-trans-3-bicyclo[3.1.0.]FK506, 31-desmethoxy-31-methyl-trans-3-bicyclo[3.1.0.]FK506, 31-O-desmethyl-32-dehydroxy-32-methyl-trans-3-bicyclo[3.1.0.]FK506, 31-O-desmethyl-32-dehydroxy-32-fluoro-trans-3-bicyclo[3.1.0.]FK506, 31-desmethoxy-31-fluoro-trans-3-bicyclo[3.1.0.]FK506, 31-O-desmethyl-32-dehydroxy-32-chloro-trans-3-bicyclo[3.1.0.]FK506, 31-desmethoxy-31-chloro-trans-3-bicyclo[3.1.0.]FK506, 31-O-desmethyl-32-dehydroxy-32-tert-butyl-trans-3-bicyclo[3.1.0.]FK506, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-trans-3-bicyclo[3.1.0.]FK506, 29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-desmethoxy-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-desmethoxy-31-cis-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-desmethoxy-31-cis-hydroxy-32-cis-hydroxy-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-desmethoxy-31-trans-hydroxy-32-trans-hydroxy-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-O-desmethyl-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-desmethoxy-31-methyl-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-methyl-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-fluoro-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-desmethoxy-31-fluoro-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-chloro-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-desmethoxy-31-chloro-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-31-O-desmethyl-32-dehydroxy-32-tert-butyl-trans-3-bicyclo[3.1.0.]FK506, 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-cycloheptyl)-trans-3-bicyclo[3.1.0.]FK506, and 9-deoxo-29-de(3-methoxy-4-hydroxy-cyclohexyl)-29-(hydroxy-norbornyl)-trans-3-bicyclo[3.1.0.]FK506. 
     
     
         92 . A method of generating a compound according to  claims 84 , said method comprising:
 (a) generating a recombinant strain in which at least the rapK homologue has been deleted or inactivated; and   (b) feeding a non-natural starter unit to said strain.   
     
     
         93 . The method of  claim 92 , which additionally comprises deleting one or more further auxiliary genes. 
     
     
         94 . The method of  claim 93 , which additionally comprises restoring by complementation one or more of the deleted genes. 
     
     
         95 . The method of  claim 92  further comprising the step of isolating and purifying the compounds generated. 
     
     
         96 . The method according to  claim 92 , wherein said non-natural starter unit is selected from the group consisting of: 2-norbornane carboxylic acid; 2-(cis/trans)-hydroxycyclohexane carboxylic acid; 3-(cis/trans)-hydroxycyclohexane carboxylic acid; 4-(cis/trans)-hydroxycyclohexane carboxylic acid; 2-(cis/trans)-methylcyclohexane carboxylic acid; 4-(cis/trans)-methylcyclohexane carboxylic acid; 3-(cis/trans)-methoxycyclohexane carboxylic acid; 4-(cis/trans)-methoxycyclohexane carboxylic acid; 4-oxo cyclohexane carboxylic acid; 2-oxo cyclohexane carboxylic acid; 4-trans-n-pentylcyclohexane carboxylic acid; 2-trans-aminocyclohexane carboxylic acid; 4-cis-aminocyclohexane carboxylic acid; 4-(cis/trans)-aminomethylcyclohexane carboxylic acid; cyclopentane carboxylic acid; cyclobutane carboxylic acid; 1-methylcyclohexane carboxylic acid; 3-trans-hydroxy-4-cis-fluorocyclohexane carboxylic acid and 4-trans-hydroxy-3-cis-fluorocyclohexane carboxylic acid; 3-cis-hydroxy-4-trans-fluorocyclohexane carboxylic acid and 4-cis-hydroxy-3-trans-fluorocyclohexane carboxylic acid; 3-cis-hydroxy-4-trans-chlorocyclohexane carboxylic acid and 4-cis-hydroxy-3-trans-chlorocyclohexane carboxylic acid; 3-trans-hydroxy-4-cis-chlorocyclohexane carboxylic acid and 4-trans-hydroxy-3-cis-chlorocyclohexane carboxylic acid; 3-trans-cyclohexeneoxide carboxylic acid; 3-cis-cyclohexeneoxide carboxylic acid; 3,4-cis-dihydroxycyclohexane carboxylic acid and 3,4-trans-dihydroxycyclohexane carboxylic acid; cyclohexaneacetic acid; cyclohexanepropionic acid and 4-cis/trans-tert-butylcyclohexane carboxylic acid or simple esters or salts thereof. 
     
     
         97 . The method according to  claim 96 , wherein said non-natural starter unit is selected from the group consisting of. 3-(cis/trans)-hydroxycyclohexane carboxylic acid; 4-(cis/trans)-hydroxycyclohexane carboxylic acid; 3-(cis/trans)-methoxycyclohexane carboxylic acid; 4-(cis/trans)-methoxycyclohexane carboxylic acid; 4-oxo cyclohexane carboxylic acid; cyclobutane carboxylic acid; 3-trans-hydroxy-4-cis-fluorocyclohexane carboxylic acid and 4-trans-hydroxy-3-cis-fluorocyclohexane carboxylic acid; 3-cis-hydroxy-4-trans-fluorocyclohexane carboxylic acid and 4-cis-hydroxy-3-trans-fluorocyclohexane carboxylic acid; 3-cis-hydroxy-4-trans-chlorocyclohexane carboxylic acid and 4-cis-hydroxy-3-trans-chlorocyclohexane carboxylic acid; 3-trans-hydroxy-4-cis-chlorocyclohexane carboxylic acid and 4-trans-hydroxy-3-cis-chlorocyclohexane carboxylic acid; 3-trans-cyclohexeneoxide carboxylic acid; 3-cis-cyclohexeneoxide carboxylic acid; 3,4-cis-dihydroxycyclohexane carboxylic acid and 3,4-trans-dihydroxycyclohexane carboxylic acid; cyclohexanepropionic acid; and 4-cis/trans-tert-butylcyclohexane carboxylic acid or simple esters or salts thereof. 
     
     
         98 . A method for the treatment of a disorder selected from the group consisting of cancer, fungal infection, autoimmune disease, proliferative disease, hyperproliferative disease, diabetes, acute or chronic rejection of an organ or tissue transplant, asthma, tumours, psoriasis, eczema, rheumatoid arthritis, fibrosis, and allergies; or for the maintenance of immunosuppression, comprising the administration of an effective amount of a compound according to  claim 84 . 
     
     
         99 . A compound of the formula 
       
         
           
           
               
               
           
         
       
       wherein:
 R 1  is selected from the group consisting of 
 R 1  is selected from the group consisting of A, B, C, D, E, F, 
 G, and H where
 A is 
 
 
       
         
           
           
               
               
           
         
         
            and B is 
         
       
       
         
           
           
               
               
           
         
         
            where: 
           Y=bond or CH 2 ; and 
           R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are independently selected from the group consisting of Cl, F, OH, SH, H, alkyl, CN, Br, R 27 , OR 27 , C(O)R 27  and HNR 27 , wherein R 27  is a C1-C4 alkyl, wherein R 21  and R 23 , R 22  and R 24 , R 23  and R 25 , R 24  and R 26 , R 21  and R 25 , or R 22  and R 26  optionally form a substituted or unsubstituted methylene link, an ether link, a thia link or an amino link, and wherein R 21  and R 22 , R 23  and R 24  or R 25  and R 26  optionally form a ketone; 
           wherein no more than 4 of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are Cl; 
           wherein no more than 2 of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are HNR 27 ; 
           wherein no more than 2 of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are SH; and 
           wherein both R groups from one carbon on the ring are not OH; 
           C is 
         
       
       
         
           
           
               
               
           
         
         
            where: 
           Y=bond or CH 2 ; 
           R 31  and R 32  are independently selected from the group consisting of F, Cl, OH, SH, H, CN, OR 37 , C(O)R 37 , and NHR 37 , wherein R 37  is a C1-C4 alkyl, and wherein R 31  and R 32  optionally form a ketone, a spirocyclopropyl group or are joined by —OCH 2 —, —CH 2 O—, —SCH 2 — or —CH 2 S—; and 
           R 33  and R 34  are independently selected from the group consisting of F, Cl, Br, OR 37 , H, and CN, wherein R 37  is a C1-C4 alkyl; 
           wherein both R groups from one carbon on the ring are not OH; 
           D is 
         
       
       
         
           
           
               
               
           
         
         
            and E is 
         
       
       
         
           
           
               
               
           
         
         
            where: 
           R 41 , R 42 , R 43 , R 44 , R 45  and R 46  are independently selected from the group consisting of Cl, F, OH, SH, H, alkyl, CN, Br, R 47 , OR 47 , C(O)R 47  and HNR 47 , wherein R 47  is a C1-C4 alkyl, wherein R 41  and R 43 , R 42  and R 44 , R 43  and R 45 , R 44  and R 46 , R 41  and R 45 , or R 42  and R 46  optionally form a substituted or unsubstituted methylene link, an ether link, a thia link or an amino link, and wherein R 43  and R 44  or R 45  and R 46  optionally form a ketone; 
           wherein both R groups from one carbon on the ring are not OH; 
           F is 
         
       
       
         
           
           
               
               
           
         
         
            where: 
           R 51  and R 52  are independently selected from the group consisting of F, Cl, OH, SH, H, CN, OR 57 , C(O)R 57 , and NHR 57 , wherein R 57  is a C1-C4 alkyl, wherein R 51  and R 52  optionally form a ketone, a spirocyclopropyl group or are joined by —OCH 2 —, —CH 2 O—, —SCH 2 — or —CH 2 S—; and 
           R 53  and R 54  are independently selected from the group consisting of F, Cl, Br, OR 57 , H and CN, wherein R 57  is a C1-C4 alkyl; 
           wherein both R groups from one carbon on the ring are not OH; 
           G is 
         
       
       
         
           
           
               
               
           
         
         
            where: 
           Y=bond or CH 2 ; and 
           R 61 , R 62 , R 63 , R 64  and R 65  are independently selected from the group consisting of Cl, F, OH, SH, H, alkyl, CN, Br, R 67 , OR 67 , C(O)R 67  and HNR 67 , wherein R 67  is a C1-C4 alkyl, wherein R 61  and R 63  or R 62  and R 64  optionally form a ketone, wherein R 61  and R 63  or R 62  and R 64  optionally form a substituted or unsubstituted methylene link, an ether link, a thia link or an amino link, and wherein R 61  and R 62  or R 63  and R 64  optionally form a spirocyclopropyl group or are linked by —OCH 2 — or —CH 2 O— or —SCH 2 — or —CH 2 S—; 
           wherein no more than two of R 61 , R 62 , R 63 , R 64  and R 65  are SH; and 
           wherein both R groups from one carbon on the ring are not OH; and 
           H is 
         
       
       
         
           
           
               
               
           
         
         
            where: 
           R 71 , R 72 , R 73  and R 74  are independently selected from the group consisting of Cl, F, OH, SH, H, alkyl, CN, Br, R 77 , OR 77 , C(O)R 77 , and HNR 77 , wherein R 77  is a C1-C4 alkyl, and wherein R 71  and R 72  or R 73  and R 74  optionally form a ketone; 
           wherein both R groups from one carbon on the ring are not OH; 
         
         R 2 =H, alkyl, halo, hydroxyl, or thiol; 
         R 3 =H, alkyl, halo, hydroxyl, or thiol; 
         R 4 =H, alkyl, halo, hydroxyl, or thiol; 
         R 5 =OCH 3 , CH 3  or H; 
         R 6 =OCH 3 , CH 3  or H; 
         R 7 =CH 2 CH 3  or CH 2 CH═CH 2 ; 
         R 8 =OH; 
         R 9 =H, OH, halo, thiol, alkyl; 
         Z=keto or CH 2 ; 
         Y=bond or CH 2 ; 
         X=X′=bond; X=bond and X′=CH 2 , S, O; or X=CH 2 , S, O, or a fused cyclopropyl unit and X′=bond; 
         with the proviso that A is not 3-cis,4-trans-dihydroxycyclohexane, cycloheptane or 3-(cis/trans)-methylcyclohexane; 
         and with the proviso that the compound is not FK506 or FK520. 
       
     
     
         100 . A compound according to  claim 99  wherein R 1  is selected from the group consisting of A, B, D, E, G and H; and
 i) two of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are F, one of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  is OH and the remainder of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are H;   ii) two of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  are F, one of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  is OH and the remainder of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  are H;   iii) two of R 61 , R 62 , R 63 , R 64  and R 65  are F, one of R 61 , R 62 , R 63 , R 64  and R 65  is OH and the remainder of R 61 , R 62 , R 63 , R 64  and R 65  are H; and   iv) two of R 71 , R 72 , R 73  and R 74  are F, one of R 71 , R 72 , R 73  and R 74  is OH and the remainder of R 71 , R 72 , R 73  and R 74  are H.   
     
     
         101 . A compound according to  claim 99  wherein R 1  is selected from the group consisting of A, B, D, E, G, and H; and
 i) one of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  is SH, F, Cl or alkyl, wherein the alkyl group contains no more than 4 carbon atoms and has a linear length of no more than 3 carbon atoms; one of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  is OH, wherein the OH does not originate from the same carbon atom as the SH, F, Cl or alkyl group; and the remainder of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are H;   ii) one of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  is SH, F, Cl or alkyl, wherein the alkyl group contains no more than 4 carbon atoms and has a linear length of no more than 3 carbon atoms; one of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  is OH, wherein the OH does not originate from the same carbon atom as the SH, F, Cl or alkyl group; and the remainder of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  are H;   iii) one of R 61 , R 62 , R 63 , R 64  and R 65  is SH, F, Cl or alkyl, wherein the alkyl group contains no more than 4 carbon atoms and has a linear length of no more than 3 carbon atoms; one of R 61 , R 62 , R 63 , R 64  and R 65  is OH, wherein the OH does not originate from the same carbon atom as the SH, F, Cl or alkyl group; and the remainder of R 61 , R 62 , R 63 , R 64  and R 65  are H; and   iv) one of R 71 , R 72 , R 73  and R 74  is SH, F, Cl or alkyl, wherein the alkyl group contains no more than 4 carbon atoms and has a linear length of no more than 3 carbon atoms; one of R 71 , R 72 , R 73  and R 74  is OH, wherein the OH does not originate from the same carbon atom as the SH, F, Cl or alkyl group; and the remainder of R 71 , R 72 , R 73  and R 74  are H.   
     
     
         102 . A compound according to  claim 99  wherein R 1  is selected from the group consisting of A, B, D, E, G, and H; and
 i) two of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are OH, one of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  is Cl or F, and the remainder of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are H;   ii) two of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  are OH, one of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  is Cl or F, and the remainder of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  are H;   iii) two of R 61 , R 62 , R 63 , R 64  and R 65  are OH, one of R 61 , R 62 , R 63 , R 64  and R 65  is Cl or F, and the remainder of R 61 , R 62 , R 63 , R 64  and R 65  are H; and   iv) two of R 71 , R 72 , R 73  and R 74  are OH, one of R 71 , R 72 , R 73  and R 74  is Cl or F, and the remainder of R 71 , R 72 , R 73  and R 74  are H.   
     
     
         103 . A compound according to  claim 99  wherein R 1  is G or H, and
 i) one of R 61 , R 62 , R 63 , R 64  and R 65  is OH and the remainder of R 61 , R 62 , R 63 , R 64  and R 65  are H; and   ii) one of R 71 , R 72 , R 73  and R 74  is OH and the remainder of R 71 , R 72 , R 73  and R 74  are H.   
     
     
         104 . A compound according to  claim 99  wherein R 1  is selected from the group consisting of A, B, D, E, G, and H; and
 i) two of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are OH and the remainder of R 21 , R 22 , R 23 , R 24 , R 25  and R 26  are H;   ii) two of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  are OH and the remainder of R 41 , R 42 , R 43 , R 44 , R 45  and R 46  are H;   iii) two of R 61 , R 62 , R 63 , R 64  and R 65  are OH and the remainder of R 61 , R 62 , R 63 , R 64  and R 65  are H; and   iv) two of R 71 , R 72 , R 73  and R 74  are OH and the remainder of R 71 , R 72 , R 73  and R 74  are H.   
     
     
         105 . A compound according to  claim 99  wherein R 1  is C or F, and
 i) one of R 33  and R 34  is F, Cl or alkyl, wherein the alkyl group contains no more than 4 carbon atoms and has a linear length of no more than 3 carbon atoms; one of R 31  and R 32  is OH; and the remainder of R 31 , R 32 , R 33  and R 34  are H; and   ii) one of R 51 , R 52 , R 53  and R 54  is F, Cl or alkyl, wherein the alkyl group contains no more than 4 carbon atoms and have a linear length of no more than 3 carbon atoms; one of R 51 , R 52 , R 53  and R 54  is OH, wherein the OH does not originate from the same carbon atom as the SH, F, Cl or alkyl group; and the remainder of R 51 , R 52 , R 53  and R 54  are H.   
     
     
         106 . A method of generating a compound according to any one  claim 99 , said method comprising:
 (a) generating a recombinant strain in which at least the rapK homologue has been deleted or inactivated; and   (b) feeding a non-natural starter unit to said strain.   
     
     
         107 . A method for the treatment of a disorder selected from the group consisting of cancer, fungal infection, autoimmune disease, proliferative disease, hyperproliferative disease, diabetes, acute or chronic rejection of an organ or tissue transplant, asthma, tumours, psoriasis, eczema, rheumatoid arthritis, fibrosis, and allergies; or for the maintenance of immunosuppression, comprising the administration of an effective amount of a compound according to  claim 99 . 
     
     
         108 . A compound of the formula: 
       
         
           
           
               
               
           
         
       
       where:
 x=bond or CH 2 , or —CHR 6 -x-CHR 5 — is 
 
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         R 1 =OH, OCH 3    
         R 2 =H, OH, OCH 3    
         R 3 =H, OH, OCH 3    
         R 4 =H, OH 
         R 5 =H, OH 
         R 6 =H, OH 
         R 8  and R 9  together are ═O or H,H; and 
         y=bond, CH 2    
         with the proviso that the compounds do not include the following:
 i) where R 1 =OCH 3 , R 2 =H, R 3 =cis-OH, R 4 =trans-OH, R 5 =H, R 6 =H, y=bond, and x=CH 2 ; 
 ii) where R 1 =OH, R 3 =cis-OH, R 4 =trans-OH, R 5 =H, R 6 =H, R 8 , R 9 =keto, y=bond, and x=CH 2 ; 
 iii) where R 1 =OCH 3 , R 2 =H or OH, R 3 =cis-OCH 3 , R 4 =trans-OH, R 5 =H, R 6 =H, y=bond, and x=CH 2 ; 
 iv) where R 1 =OCH 3 , R 2 =OCH 3 , R 3 =cis-OCH 3 , R 4 =trans-OH, R 5 =H, R 6 =H, R 8  and R 9 =(H,H), y=bond, and x=CH 2  or bond; 
 v) where R 2 =OCH 3 , R 3 =cis-OCH 3 , R 4 =trans-OH, R 5 =H, R 6 =H, R 8 , R 9 =keto, y=bond, and x=CH 2 ; 
 vi) where R 1 =OCH 3 , R 2 =H, R 3 =cis-OCH 3 , R 4 =trans-OH, R 5 =H, R 6 =H, y=bond, and x=bond; 
 vii) where R 1 =OCH 3 , R 2 =OH, R 3 =cis-OCH 3 , R 4 =trans-OH, R 5 =H, R 6 =H, R 8 , R 9 =keto, y=bond, and x=bond; 
 viii) where R 1 =OCH 3 , R 2 =OCH 3 , R 3 =H, R 4 =OH, R 5 =H, R 6 ═H, y=CH 2 , and x=CH 2 ; 
 ix) where R 1 =OCH 3 , R 2 =OCH 3 , —CHR 6 -x-CHR 5 — is 
 
       
       
         
           
           
               
               
           
         
         
            R 3 =cis-OCH 3 , R 4 =trans-OH, R 7 =H, and R 8 , R 9 =keto; 
           x) where R 1 =OCH 3 , R 2 =H, R 3 =cis-OCH 3 , R 4 =trans-OH, R 5 =H, R 6 =OH, R 8 , R 9 =keto, y=bond, and x=bond; 
           xi) where R 1 =OCH 3 , R 2 =OCH 3 , R 3 =cis-OH, R 4 =H, R 5 =H, R 6 =H, R 8 , R 9 =keto, y=bond, and x=CH 2 ; 
           xii) where R 1 =OH, R 2 =H or OH, R 3 =H, R 4 =OH, R 5 =H, R 6 =H, R 8 , R 9 =(H,H), y=CH 2 , and x=CH 2 ; 
           xiii) where R 1 =OH, R 2 =OCH 3 , R 3 =H, R 4 =OH, R 5 =H, R 6 =H, y=CH 2 , and x=CH 2 ; 
           xiv) where R 1 =OCH 3 , R 2 =H, R 3 =H, R 4 =OH, R 5 =H, R 6 ═H, R 8 , R=keto, y=CH 2 , and x=CH 2 ; and 
           xv) where R 1 =OCH 3 , R 2 =OCH 3 , R 3 =H, R 4 =trans-OH, R 5 =H, R 6 =H, R 8 , R 9 =keto, y=bond, and x=CH 2 . 
         
       
     
     
         109 . The compound according to  claim 108 , where
 R 1 =OCH 3      R 2 =OCH 3      y=bond   x=CH 2      R 8 , R 9 =keto.   
     
     
         110 . The compound according to  claim 109 , where
 R 3 =H   R 4 =OH.

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