Morpholinone and morpholine derivatives and uses thereof

Abstract

This invention is directed to morpholinone and morpholine derivatives which are selective antagonists for human α 1a receptors. This invention is also related to uses of these compounds for lowering intraocular pressure, inhibiting cholesterol synthesis, relaxing lower urinary tract tissue, the treatment of benign prostatic hyperplasia, impotency, cardiac arrhythmia, sympathetic mediated pain, migraine, and for the treatment of any disease where the antagonism of the α 1a receptor may be useful. The invention further provides a pharmaceutical composition comprising a therapeutically effective amount of the above-defined compounds and a pharmaceutically acceptable carrier.

What is claimed is:  
     
         1 . A compound having the structure  
       
         
           
           
               
               
           
         
         where W is O, S, or NR 8 ; wherein R 8  is independently H, straight chained or branched C 1 -C 7  alkyl, straight chained or branched C 2 -C 7  alkenyl or alkynyl, C 3 -C 7  cycloalkyl, or C 5 -C 7  cycloalkenyl;  
         where Y is independently O or S;  
         where R 2  is aryl or heteroaryl; wherein the aryl or heteroaryl may be substituted with one or more of F; Cl; Br; I; —CN; —NO 2 ; —N(R 8 ) 2 ; —SO 2 R 8 ; —(CH 2 ) n C(Y)R 8 ; —(CH 2 ) n YR 8 ; —(CH 2 ) n C(Y)N(R 8 ) 2 ; —(CH 2 ) n CO 2 R 8 ; straight chained or branched C 1 -C 7  alkyl, monofluoroalkyl, polyfluoroalkyl, aminoalkyl, or carboxamidoalkyl; straight chained or branched C 2 -C 7  alkenyl or alkynyl; C 3 -C 7  cycloalkyl; or C 5 -C 7  cycloalkenyl; and wherein n independently is an integer from 0 to 7 inclusive;  
         where R 3  is independently H; straight chained or branched C 1 -C 7  alkyl, monofluoroalkyl, or polyfluoroalkyl;  
         where R 4  is H, —(CH 2 ) t YR 8 , —(CH 2 ) t C(Y)N(R 8 ) 2 , —(CH 2 ) t C(Y)R 8 , —(CH 2 ) t CO 2 R 8 , —(CH 2 ) t N(R 8 ) 2 , —(CH 2 ) t CN, —C(Y)R 8 , —C(Y)N(R 8 ) 2 , —CO 2 R 8 , straight chained or branched C 1 -C 7  alkyl, straight chained or branched C 2 -C 7  alkenyl or alkynyl, C 3 -C 7  cycloalkyl, C 5 -C 7  cycloalkenyl, or phenyl or benzyl; wherein the phenyl or benzyl may be substituted with one or more of F; Cl; Br; I; —CN; —NO 2 ; —N(R 8 ) 2 ; —SO 2 R 8 ; —(CH 2 ) n C(Y)R 8 ; —(CH 2 ) n YR 8 ; —(CH 2 ) n C(Y)N(R 8 ) 2 ; —(CH 2 ) n CO 2 R 8 ; straight chained or branched C 1 -C 7  alkyl, monofluoroalkyl, polyfluoroalkyl, aminoalkyl, or carboxamidoalkyl; straight chained or branched C 2 -C 7  alkenyl or alkynyl; C 3 -C 7  cycloalkyl; or C 5 -C 7  cycloalkenyl; and wherein t independently is an integer from 1 to 4 inclusive;  
         where R 5  is H, —(CH 2 ) t YR 8 , —(CH 2 ) t C(Y)N(R 8 ) 2 , —(CH 2 ) t C(Y)R 8 , —(CH 2 ) t CO 2 R 8 , —(CH 2 ) t N(R 8 ) 2 , —(CH 2 ) t CN, straight chained or branched C 1 -C 7  alkyl, straight chained or branched C 2 -C 7  alkenyl or alkynyl, C 3 -C 7  cycloalkyl, C 5 -C 7  cycloalkenyl, or phenyl or benzyl; wherein the phenyl or benzyl may be substituted with one or more of F; Cl; Br; I; —CN; —NO 2 ; —N(R 8 ) 2 ; —SO 2 R 8 ; —(CH 2 ) n C(Y)R 8 ; —(CH 2 ) n YR 8 ; —(CH 2 ) n C(Y)N(R 8 ) 2 ; —(CH 2 ) n CO 2 R 8 ; straight chained or branched C 1 -C 7  alkyl, monofluoroalkyl, polyfluoroalkyl, aminoalkyl, or carboxamidoalkyl; straight chained or branched C 2 -C 7  alkenyl or alkynyl; C 3 -C 7  cycloalkyl; or C 2 -C 7  cycloalkenyl;  
         where R 6  is H, —(CH 2 ) t YR 8 , —(CH 2 ) t C(Y)N(R 8 ) 2 , —(CH 2 ) t C(Y)R 8 , —(CH 2 ) t CO 2 R 8 , —(CH 2 ) t N(R 8 ) 2 , —(CH 2 ) t CN, —C(Y)R 8 , —C(Y)N(R) 2 , —CO 2 R 8 , straight chained or branched C 1 -C 7  alkyl, straight chained or branched C 2 -C 7  alkenyl or alkynyl, C 3 -C 7  cycloalkyl, C 5 -C 7  cycloalkenyl, or phenyl or benzyl; wherein the phenyl or benzyl may be substituted with one or more of F; Cl; Br; I; —CN; —NO 2 ; —N(R 8 ) 2 ; —SO 2 R 8 ; —(CH 2 ) n C(Y)R 8 ; —(CH 2 ) n YR 8 ; —(CH 2 ) n C(Y)N(R 8 ) 2 ; —(CH 2 ) n CO 2 R 8 ; straight chained or branched C 1 -C 7  alkyl, monofluoroalkyl, polyfluoroalkyl, aminoalkyl, or carboxamidoalkyl; straight chained or branched C 2 -C 7  alkenyl or alkynyl; C 3 -C 7  cycloalkyl; or C 5 -C 7  cycloalkenyl;  
         where R 7  is H, —(CH 2 ) t YR 8 , —(CH 2 ) t C(Y)N(R 8 ) 2 , —(CH 2 ) t C(Y)R 8 , —(CH 2 ) t CO 2 R 8 , —(CH 2 ) t N(R 8 ) 2 , —(CH 2 ) t CN, straight chained or branched C 1 -C 7  alkyl, straight chained or branched C 2 -C 7  alkenyl or alkynyl, C 3 -C 7  cycloalkyl, C 5 -C 7  cycloalkenyl, or phenyl or benzyl; wherein the phenyl or benzyl may be substituted with one or more of F; Cl; Br; I; —CN; —NO 2 ; —N(R 8 ) 2 ; —SO 2 R 8 ; —(CH 2 ) n C(Y)R 8 ; —(CH 2 ) n YR 8 ; —(CH 2 ) n C(Y)N(R 8 ) 2 ; —(CH 2 ) n CO 2 R 8 ; straight chained or branched C 1 -C 7  alkyl, monofluoroalkyl, polyfluoroalkyl, aminoalkyl, or carboxamidoalkyl; straight chained or branched C 2 -C 7  alkenyl or alkynyl; C 3 -C 7  cycloalkyl; or C 5 -C 7  cycloalkenyl;  
         where q is an integer from 0 to 4 inclusive;  
         where each R 8 , n, and t independently is as defined above;  
         where R 1  is  
         
           
             
             
                 
                 
             
           
         
         wherein each R 9  is H; straight chained or branched C 1 -C 7  alkyl, hydroxyalkyl, aminoalkyl, alkoxyalkyl, monofluoroalkyl, or polyfluoroalkyl; straight chained or branched C 2 -C 7  alkenyl or alkynyl; C 3 -C 7  cycloalkyl, monofluorocycloalkyl, or polyfluorocycloalkyl; C 5 -C 7  cycloalkenyl; or aryl or heteroaryl, wherein the aryl or heteroaryl may be substituted with one or more of F; Cl; Br; I; —(CH 2 ) n YR 8 ; —(CH 2 ) n C(Y)R 8 ; —(CH 2 ) n C(Y)N(R 8 ) 2 ; —(CH 2 ) n CO 2 R 8 ; —CN; —NO 2 ; —N(R 8 ) 2 ; —SO 2 R 8 ; straight chained or branched C 1 -C 7  alkyl, monofluoroalkyl, or polyfluoroalkyl; straight chained or branched C 2 -C 7  alkenyl or alkynyl; C 3 -C 7  cycloalkyl, monofluorocycloalkyl, or polyfluorocycloalkyl; or C 5 -C 7  cycloalkenyl;  
         wherein each R 10  is H; F; —OH; —(CH 2 ) n C(Y)R 8 , —(CH 2 ) n YR 8 ; —(CH 2 ) n C(Y)N(R 8 ) 2 ; —(CH 2 ) n CO 2 R 8 ; —CN; —NO 2 ; —N(R 8 ) 2 ; aryl or heteroaryl; straight chained or branched C 1 -C 7  alkyl, hydroxyalkyl, aminoalkyl, carboxamidoalkyl, alkoxyalkyl, monofluoroalkyl, or polyfluoroalkyl; straight chained or branched C 2 -C 7  alkenyl or alkynyl; C 3 -C 7  cycloalkyl, monofluorocycloalkyl, or polyfluorocycloalkyl; or C 5 -C 7  cycloalkenyl; wherein the alkyl, hydroxyalkyl, alkoxyalkyl, aminoalkyl, carboxamidoalkyl, alkenyl, alkynyl, cycloalkyl or cycloalkenyl may be substituted with one or more aryl or heteroaryl; wherein the aryl or heteroaryl may be substituted with one or more of F; Cl; Br; I; —(CH 2 ) n YR 8 ; —(CH 2 ) n C(Y)R 8 ; —(CH 2 ) n C(Y)N(R 8 ) 2 ; —(CH 2 ) n CO 2 R 8 ; —CN; —NO 2 ; —N(R 8 ) 2 ; —SO 2 R 8 ; straight chained or branched C 1 -C 7  alkyl, monofluoroalkyl, or polyfluoroalkyl; straight chained or branched C 2 -C 7  alkenyl or alkynyl; C 3 -C 7  cycloalkyl, monofluorocycloalkyl, or polyfluorocycloalkyl; or C 5 -C 7  cycloalkenyl;  
         wherein each R 11  is independently H, —(CH 2 ) t YR 8 , —(CH 2 ) t C(Y)N(R 8 ) 2 , —(CH 2 ) t C(Y)R 8 , —(CH 2 ) t CO 2 R 8 , —(CH 2 )N(R 8 ) 2 , —(CH 2 ) t CN, —C(Y)R 8 , —C(Y)N(R 8 ) 2 , —CO 2 R 8 , straight chained or branched C 1 -C 7  alkyl, straight chained or branched C 2 -C 7  alkenyl or alkynyl, C 3 -C 7  cycloalkyl, or C 5 -C 7  cycloalkenyl;  
         wherein each R 12  is independently H, —(CH 2 ) t YR 8 , —(CH 2 ) t C(Y)N(R 8 ) 2 , —(CH 2 ) t C(Y)R 8 , —(CH 2 ) t CO 2 R 8 , —(CH 2 )N(R 8 ) 2 , —(CH 2 ) t CN, straight chained or branched C 1 -C 7  alkyl, straight chained or branched C 2 -C 7  alkenyl or alkynyl, C 3 -C 7  cycloalkyl, or C 5 -C 7  cycloalkenyl;  
         wherein R 13  is H, C 1 -C 7  alkyl, —C(O)R 2 , aryl, heteroaryl, C 1 -C 7  alkyl substituted with one or two aryl, or C 1 -C 7  alkyl substituted with one or two heteroaryl; wherein the aryl or heteroaryl may be substituted with one or more of F; Cl; Br; I; —CN; —NO 2 ; —N(R 8 ) 2 ; —SO 2 R 8 ; —(CH 2 ) n C(Y)R 8 ; —(CH 2 ) n YR 8 ; —(CH 2 ) n C(Y)N(R 8 ) 2 ; —(CH 2 )CO 2 R 8 ; straight chained or branched C 1 -C 7  alkyl, monofluoroalkyl, polyfluoroalkyl, or carboxamidoalkyl; straight chained or branched C 2 -C 7  aminoalkyl, alkenyl, choralkynyl; C 3 -C 7  cycloalkyl; or C 5 -C 7  cycloalkenyl;  
         wherein R 14  is H, straight chained or branched C 1 -C 7  akyl;  
         wherein Z is O, S, NR 14 , CO, CH 2 ,  
         
           
             
             
                 
                 
             
           
         
         wherein Y 1 , Y 2 , and Y 3  independently are H; F; Cl; Br; I; —CN; —NO 2 ; —N(R 8 ) 2 ; —SO 2 R 8 ; —(CH 2 ) n C(Y)R 8 ; —(CH 2 ) n YR 8 ; —(CH 2 ) n C(Y)N(R 8 ) 2 ; —(CH 2 ) n CO 2 R 8 ; straight chained or branched C 1 -C 7  alkyl, monofluoroalkyl, polyfluoroalkyl, aminoalkyl, or carboxamidoalkyl; straight chained or branched C 2 -C 7  alkenyl or alkynyl; C 3 -C 7  cycloalkyl; or C 5 -C 7  cycloalkenyl;  
         wherein each m is independently 1 or 2;  
         whereineach p is independently an integer from 0 to 2 inclusive;  
         wherein J is  
         
           
             
             
                 
                 
             
           
         
         or C 2 -C 7  alkenyl;  
         wherein each R 15  is independently H, —(CH 2 ) t YR 8 , —(CH 2 ) t C(Y)N(R 8 ) 2 , —(CH 2 ) t C(Y)R 8 , —(CH 2 ) t CO 2 R 8 , —(CH 2 ) t N(R 8 ) 2 , —(CH 2 ) t CN, —C(Y)R 8 , —C(Y)N(R 8 ) 2 , —CO 2 R 8 , straight chained or branched C 1 -C 7  alkyl, straight chained or branched C 2 -C 7  alkenyl or alkynyl, C 3 -C 7  cycloalkyl, or C 5 -C 7  cycloalkenyl;  
         wherein each R 16  is independently H, —(CH 2 ) t YR 8 , —(CH 2 ) t C(Y)N(R 8 ) 2 , —(CH 2 ) t C(Y)R 8 , —(CH 2 ) t CO 2 R 8 , —(CH 2 ) t N(R 8 ) 2 , —(CH 2 ) t CN, straight chained or branched C 1 -C 7  alkyl, straight chained or branched C 2 -C 7  alkenyl or alkynyl, C 3 -C 7  cycloalkyl, or C 5 -C 7  cycloalkenyl;  
         wherein each R 17  is independently H; F; —(CH 2 ) t YR 8 ; —(CH 2 ) t C(Y)N(R 8 ) 2 ; —(CH 2 ) t C(Y)R 8 ; —(CH 2 ) t CO 2 R 8 ; —(CH 2 ) t N(R 8 ) 2 ; —(CH 2 ) t CN; —C(Y)R 8 ; —C(Y)N(R 8 ) 2 ; —CO 2 R 8 ; straight chained or branched C 1 -C 7  alkyl, monofluoroalkyl, polyfluoroalkyl, aminoalkyl, or carboxamidoalkyl; straight chained or branched C 2 -C 7  alkenyl or alkynyl; C 3 -C 7  cycloalkyl; or C 5 -C 7  cycloalkenyl;  
         wherein each R 18  is independently H; F; —(CH 2 ) t YR 8 ; —(CH 2 ) t C(Y)N(R 8 ) 2 ; —(CH 2 ) t C(Y)R 8 ; —(CH 2 ) t CO 2 R 8 ; —(CH 2 ) t N(R 8 ) 2 ; —(CH 2 ) t CN; straight chained or branched C 1 -C 7  alkyl, monofluoroalkyl, polyfluoroalkyl, aminoalkyl, or carboxamidoalkyl; straight chained or branched C 2 -C 7  alkenyl or alkynyl; C 3 -C 7  cycloalkyl; or C 5 -C 7  cycloalkenyl;  
         wherein L is S, O, or N(R 8 );  
         wherein u is an integer from 0 to 1 inclusive;  
         or a pharmaceutically acceptable salt thereof.  
       
     
     
         2 . The compound of  claim 1 , wherein the compound comprises the (+) enantiomer.  
     
     
         3 . The compound of  claim 1 , wherein the compound comprises the (−) enantiomer.  
     
     
         4 . The compound of  claim 1 , wherein W is O.  
     
     
         5 . The compound of  claim 1 , wherein J is  
       
         
           
           
               
               
           
         
       
     
     
         6 . The compound of  claim 5 , wherein R 1  is  
       
         
           
           
               
               
           
         
       
     
     
         7 . The compound of  claim 6 , 
 wherein R 9  is aryl or heteroaryl, wherein the aryl or heteroaryl may be substituted with one or more of F; Cl; Br; I; —(CH 2 ) n YR 8 ; —(CH 2 ) n C(Y)R 8 ; —(CH 2 ) n C(Y)N(R 8 ) 2 ; —(CH 2 ) n CO 2 R 8 ; —CN; —NO 2 ; —N(R 8 ) 2 ; —SO 2 R 8 ; straight chained or branched C 1 -C 7  alkyl, monofluoroalkyl, or polyfluoroalkyl; and    wherein R 10  is H; —CN; —OH; —CO 2 R 8 ; aryl or heteroaryl; wherein the aryl or heteroaryl may be substituted with one or more of F; Cl; Br; I; —(CH 2 ) n YR 8 ; —(CH 2 ) n C(Y)R 8 ; (CH 2 ) n C(Y)N(R 8 ) 2 ; —(CH 2 ) n CO 2 R 8 ; —CN; —NO 2 ; —N(R 8 ) 2 ; —SO 2 R 8 ; straight chained or branched C 1 -C 7  alkyl, monofluoroalkyl, or polyfluoroalkyl.    
     
     
         8 . The compound of  claim 7  having the structure:  
       
         
           
           
               
               
           
         
       
       wherein R 2  is phenyl; wherein the phenyl may be substituted with one or more of F; Cl; Br; I; —CN; —NO 2 ; —N(R 8 ) 2 ; —SO 2 R 8 ; —(CH 2 ) n C(Y)R 8 ; —(CH 2 ) n YR 8 ; —(CH 2 ) n C(Y)N(R 8 ) 2 ; —(CH 2 ) n CO 2 R 8 ; straight chained or branched C 1 -C 7  alkyl, monofluoroalkyl, or polyfluoroalkyl.  
     
     
         9 . The compound of  claim 8  wherein J is  
       
         
           
           
               
               
           
         
       
     
     
         10 . The compound of  claim 9  wherein R 1  is  
       
         
           
           
               
               
           
         
       
     
     
         11 . The compound of  claim 10 , 
 wherein R 9  is phenyl or pyridyl, wherein the phenyl or pyridyl may be substituted with one or more of F; Cl; Br; I; —(CH 2 ) n YR 8 ; —(CH 2 ) n C(Y)R 8 ; —(CH 2 ) n C(Y)N(R 8 ) 2 ; —(CH 2 ) n CO 2 R 8 ; —CN; —NO 2 ; —N(R 8 ) 2 ; —SO 2 R 8 ; straight chained or branched C 1 -C 7  alkyl, monofluoroalkyl, or polyfluoroalkyl;    wherein R 10  is H, —CN, —OH, —CO 2 R 8 , or phenyl; wherein the phenyl may be substituted with one or more of F; Cl; Br; I; —(CH 2 ) n YR 8 ; —(CH 2 ) n C(Y)R 8 ; —(CH 2 ) n C(Y)N(R 8 ) 2 ; —(CH 2 ) n CO 2 R 8 , —CN; —NO 2 ; —N(R 8 ) 2 ; —SO 2 R 8 ; straight chained or branched C 1 -C 7  alkyl, monofluoroalkyl, or polyfluoroalkyl; and    wherein R 13  is phenyl; wherein the phenyl may be substituted with one or more of F; Cl; Br; I; —CN; —NO 2 ; —N(R 8 ) 2 ; —SO 2 R 8 ; —(CH 2 ) n C(Y)R 8 ; —(CH 2 ) n YR 8 ; —(CH 2 ) n C(Y)N(R 8 ) 2 ; —(CH 2 ) n CO 2 R 8 ; straight chained or branched C 1 -C 7  alkyl, monofluoroalkyl, polyfluoroalkyl, or carboxamidoalkyl; straight chained or branched C 2 -C 7  aminoalkyl, alkenyl, or alkynyl; C 3 -C 7  cycloalkyl; or C 5 -C 7  cycloalkenyl.    
     
     
         12 . A pharmaceutical composition comprising a therapeutically effective amount of the compound of  claim 1  and a pharmaceutically acceptable carrier.  
     
     
         13 . The pharmaceutical composition of  claim 12 , wherein the amount of the compound is an amount from about 0.01 mg to about 800 mg.  
     
     
         14 . The pharmaceutical composition of  claim 13 , wherein the amount of the compound is from about 0.01 mg to about 500 mg.  
     
     
         15 . The pharmaceutical composition of  claim 14 , wherein the amount of the compound is from about 0.01 mg to about 250 mg.  
     
     
         16 . The pharmaceutical composition of  claim 15 , wherein the amount of the compound is from about 0.1 mg to about 60 mg.  
     
     
         17 . The pharmaceutical composition of  claim 16 , wherein the amount of the compound is from about 1 mg to about 20 mg.  
     
     
         18 . The pharmaceutical composition of  claim 12 , wherein the carrier is a liquid and the composition is a solution.  
     
     
         19 . The pharmaceutical composition of  claim 12 , wherein the carrier is a solid and the composition is a tablet.  
     
     
         20 . The pharmaceutical composition of  claim 12 , wherein the carrier is a gel and the composition is a suppository.  
     
     
         21 . The pharmaceutical composition of  claim 12 , wherein the compound additionally does not cause a fall in blood pressure at dosages effective to alleviate benign prostatic hyperplasia.  
     
     
         22 . A method of treating a subject suffering from benign prostatic hyperplasia which comprises administering to the subject an amount of the compound of  claim 1  effective to treat benign prostatic hyperplasia.  
     
     
         23 . A method of  claim 22 , wherein the compound additionally does not cause a fall in blood pressure at dosages effective to alleviate benign prostatic hyperplasia.  
     
     
         24 . The method of  claim 23 , wherein the compound effects treatment of benign prostatic hyperplasia by relaxing lower urinary tract tissue.  
     
     
         25 . The method of  claim 24 , wherein lower urinary tract tissue is prostatic smooth muscle.  
     
     
         26 . A method of treating a subject suffering from high intraocular pressure which comprises administering to the subject an amount of the compound of  claim 1  effective to lower intraocular pressure.  
     
     
         27 . A method of treating a subject suffering from a disorder associated with high cholesterol which comprises administering to the subject an amount of the compound of  claim 1  effective to inhibit cholesterol synthesis.  
     
     
         28 . A method of treating a subject suffering from cardiac arrhythmia which comprises administering to the subject an amount of the compound of claim  1  effective to treat cardiac arrhythmia.  
     
     
         29 . A method of treating a subject suffering from impotency which comprises administering to the subject an amount of the compound of  claim 1  effective to treat impotency.  
     
     
         30 . A method of treating a subject suffering from sympathetically mediated pain which comprises administering to the subject an amount of the compound of  claim 1  effective to treat sympathetically mediated pain.  
     
     
         31 . A method of treating a subject suffering from migraine which comprises administering to the subject an amount of the compound of  claim 1  effective to treat migraine.  
     
     
         32 . A method of treating a disease which is susceptible to treatment by antagonism of the α 1a  receptor which comprises administering to the subject an amount of the compound of  claim 1  effective to treat the disease.  
     
     
         33 . A method of treating a subject suffering from benign prostatic hyperplasia which comprises administering to the subject an amount of the compound of  claim 1  in combination with a 5-alpha reductase inhibitor effective to treat benign prostatic hyperplasia.  
     
     
         34 . The method of  claim 33 , wherein the 5-alpha reductase inhibitor is finasteride.  
     
     
         35 . A pharmaceutical composition comprising a therapeutically effective amount of the compound of  claim 1  in combination with a therapeutically effective amount of finasteride and a pharmaceutically acceptable carrier.  
     
     
         36 . The pharmaceutical composition of  claim 35 , wherein the compound is present in an amount from about 0.01 mg to about 800 mg and the therapeutically effective amount of the finasteride is about 5 mg.  
     
     
         37 . The pharmaceutical composition of  claim 36 , wherein the compound is present in an amount from about 0.1 mg to about 60 mg and the therapeutically effective amount of finasteride is about 5 mg.  
     
     
         38 . The pharmaceutical composition of  claim 37 , wherein the compound is present in an amount from about 1 mg to about 20 mg and the therapeutically effective amount of finasteride is about 5 mg.  
     
     
         39 . A method of relaxing lower urinary tract tissue which comprises contacting the lower urinary tract tissue with an amount of the compound of  claim 1  effective to relax lower urinary tract tissue.  
     
     
         40 . The method of  claim 39 , wherein the lower urinary tract tissue is prostatic smooth muscle.  
     
     
         41 . A method of relaxing lower urinary tract tissue in a subject which comprises administering to the subject an amount of the compound of  claim 1  effective to relax lower urinary tract tissue.  
     
     
         42 . The method of  claim 41 , wherein the lower urinary tract tissue is prostatic smooth muscle.  
     
     
         43 . A pharmaceutical composition made by combining a therapeutically effective amount of the compound of  claim 1  and a pharmaceutically acceptable carrier.  
     
     
         44 . A pharmaceutical composition made by combining a therapeutically effective amount of the compound of  claim 1  with a therapeutically effective amount of finasteride and a pharmaceutically acceptable carrier.  
     
     
         45 . A process for making a pharmaceutical composition comprising combining a therapeutically effective amount of the compound of  claim 1  and a pharmaceutically acceptable carrier.  
     
     
         46 . A process for making a pharmaceutical composition comprising combining a therapeutically effective amount of the compound of  claim 1  with a therapeutically effective amount of finasteride and a pharmaceutically acceptable carrier.