US2022153751A1PendingUtilityA1

Bifunctional compounds

66
Assignee: BIOTHERYX INCPriority: Jul 27, 2018Filed: Jan 31, 2022Published: May 19, 2022
Est. expiryJul 27, 2038(~12 yrs left)· nominal 20-yr term from priority
C07D 495/04A61P 35/00C07D 417/14C07D 403/14C07D 401/14A61K 31/4545A61K 31/53A61K 31/55A61K 31/506A61K 31/454
66
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Claims

Abstract

The present application provides compounds that modulate CDK protein function. Methods of making the compounds, compositions containing the compounds, and uses of the compounds for treating or ameliorating of diseases, disorders, or conditions associated with CDK proteins, are also disclosed.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A compound of Formula (I), 
       
         
           
           
               
               
           
         
         or a pharmaceutically acceptable salt thereof, wherein: 
         R 1  is 
       
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
       
       wherein R 1  is optionally substituted with one or more R A ;
 n is 1, 2, or 3; 
 each R 2a  and R 2b  is independently H, deuterium, halogen, or C 1 -C 6  alkyl; 
 each R 3  is independently H, deuterium, C 1 -C 6  alkyl, 
 
       
         
           
           
               
               
           
         
         each R A  is independently deuterium, hydroxyl, halogen, cyano, nitro, optionally substituted C 1 -C 6  alkyl, C 2 -C 6  alkenyl, C 2 -C 6  alkynyl, C 1 -C 6  alkoxy, C 1 -C 6  haloalkyl, C 1 -C 6  haloalkoxy, optionally substituted amino, C 1 -C 6  alkylamino, amino(C 1 -C 6  alkyl), —(C═O)NR 10a R 10b  (C 1 -C 6  alkoxy)C 1 -C 6  alkyl, —O—(C 1 -C 6  alkoxy)C 1 -C 6  alkyl, or optionally substituted C 3 -C 7  cycloalkyl; 
         each of R 4 , R 5  and R 6  is independently H, halogen, C 1 -C 6  alkyl, C 1 -C 6  haloalkyl, C 1 -C 6  alkoxy, C 1 -C 6  haloalkoxy, optionally substituted C 3 -C 7  cycloalkyl(C 1 -C 3  alkyl), or optionally substituted C 3 -C 7  cycloalkyl; 
         each of R 7a  and R 7b  is independently H, optionally substituted C 1 -C 6  alkyl, optionally substituted C 2 -C 6  alkenyl, optionally substituted C 2 -C 6  alkynyl, optionally substituted C 6 -C 10  aryl, optionally substituted 5 to 10 membered heteroaryl, optionally substituted C 7 -C 14  aralkyl, optionally substituted 3 to 10 membered heterocyclyl, or optionally substituted C 3 -C 8  carbocyclyl; 
         each of R 8a  and R 8b  is independently H, halogen, C 1 -C 6  alkyl, C 1 -C 6  alkoxy, C 1 -C 6  haloalkyl, C 1 -C 6  haloalkoxy, or C 3 -C 8  carbocyclyl; 
         each of R 9a  and R 9b  is independently H, optionally substituted C 1 -C 6  alkyl, optionally substituted C 6 -C 10  aryl, optionally substituted C 7 -C 14  aralkyl, or optionally substituted C 3 -C 8  carbocyclyl; 
         each R 10a  and R 10b  is independently H or C 1 -C 6  alkyl, or R 10a  and R 10b  together with the nitrogen atom to which they are attached form an optionally substituted 5 or 6 membered heterocyclyl optionally substituted with one or more R 11 ; 
         each R 11  is independently C 1 -C 6  alkyl, C 1 -C 6  alkoxy, C 1 -C 6  haloalkyl, C 1 -C 6  haloalkoxy, (C 1 -C 6  alkoxy)C 1 -C 6  alkyl, —O—(C 1 -C 6  alkoxy)C 1 -C 6  alkyl, optionally substituted amino, halogen, or cyano; or two geminal R 11  form oxo; 
         Q is CH 2  or C═O; 
         L 1  is a bond, 
       
       
         
           
           
               
               
           
         
         *—Z 1e -Z 3 —(CH 2 ) m5 —, 
       
       
         
           
           
               
               
           
         
       
       wherein the asterisk * indicates the point of connection to X 1 ;
 each of Z 1a , Z 1b , Z 1c , Z 1d , Z 1e , and Z 1f  is independently a bond or —(CR a R b ) q1 —; 
 Z 2  is —(CR c R d ) q2 —; 
 Z 3  is a bond, O or NR 12g ; 
 each of R a , R b , R c  and R d  is independently H, halogen, hydroxy, C 1 -C 6  alkyl, C 1 -C 6  haloalkyl, C 1 -C 6  alkoxy, C 1 -C 6  haloalkoxy, or optionally substituted C 3 -C 6  cycloalkyl; 
 each q1 and q2 is independently 1, 2 or 3; 
 each X a  and X b  is independently O or S; 
 each Ring A is independently phenyl or a five to six membered heteroaryl, each optionally substituted with one or more R 11 ; 
 each of Y 1 , Y 2 , Y 3 , Y 4 , Y 5  and Y 6  is —NR 12h —, —O—, or —S—; 
 each R 12a , R 12b , R 12c , R 12d , R 12e , R 12f , R 12g  and R 12h  is independently H or C 1 -C 6  alkyl; 
 each of m1, m2, m3, m4, m5, m6, k1, k2, k3, k4, k5, k6, p1, p2, p3, p4, p5, and p6 is independently 0, 1, 2, or 3; 
 L 2  is a bond, —C(═O)—, or —(CH 2 ) 0-3 —C(═O)NR 3 —; 
 R 13  is H or C 1 -C 6  alkyl; 
 X 1  is C 1 -C 15  alkylene or heteroalkylene; 
 X 2  is —NHC(═O)—, —NH—, —O—, —NHC(═O)NH—, —NHCH 2 — or —S—; and 
 X 3  is —NH—, —O—, or —S—; 
 provided that when the compound has the structure 
 
       
         
           
           
               
               
           
         
       
       R 1  is 
       
         
           
           
               
               
           
         
       
       Q is C═O, n is 2, R 3  is H, then R 2a  is deuterium, halogen, or C 1 -C 6  alkyl. 
     
     
         2 . The compound of  claim 1 , wherein R 1  is 
       
         
           
           
               
               
           
         
       
     
     
         3 . The compound of  claim 1  or  2 , wherein R 2a  is H. 
     
     
         4 . The compound of any one of  claims 1  to  3 , wherein R 2b  is C 1 -C 6  alkyl. 
     
     
         5 . The compound of any one of  claims 1  to  4 , wherein R 3  is H. 
     
     
         6 . The compound of any one of  claims 1  to  5 , wherein n is 2. 
     
     
         7 . The compound of any one of  claims 1  to  6 , wherein R 4  is H. 
     
     
         8 . The compound of any one of  claims 1  to  7 , wherein one of R 5  and R 6  is H and the other of R 5  and R 6  is C 1 -C 6  alkyl, C 1 -C 6  haloalkyl, C 1 -C 6  alkoxy, C 1 -C 6  haloalkoxy, C 3 -C 6  cycloalkyl, C 3 -C 6  cycloalkyl(C 1 -C 3  alkyl), trifluoromethyl substituted cyclopropyl, or trifluoromethyl substituted cyclopropyl(C 1 -C 3  alkyl). 
     
     
         9 . The compound of any one of  claims 1  to  8 , wherein L 1  is 
       
         
           
           
               
               
           
         
       
     
     
         10 . The compound of  claim 9 , wherein each of R 12a  and R 12b  is H; X a  is O; Z 1a  is a bond or —(CH 2 ) 1-3 —; and m1 is 0 or 1. 
     
     
         11 . The compound of any one of  claims 1  to  8 , wherein L 1  is 
       
         
           
           
               
               
           
         
       
     
     
         12 . The compound of  claim 11 , wherein each of R 12c  and R 12d  is H; X a  is O; Z 2  is —CH 2 —; Z 1b  is a bond or —(CH 2 ) 1-3 —; and m2 is 0 or 1. 
     
     
         13 . The compound of any one of  claims 1  to  8 , wherein L 1  is *—Z 1e -Z 3 —(CH 2 ) m5 — and Z 3  is —NR 12g —. 
     
     
         14 . The compound of  claim 13 , wherein R 12g  is H; Z 1e  is a bond or —(CH 2 ) 1-3 —; and m5 is 0 or 1. 
     
     
         15 . The compound of any one of  claims 1  to  8 , wherein L 1  is 
       
         
           
           
               
               
           
         
       
     
     
         16 . The compound of  claim 15 , wherein R 12f  is H; Z 1d  is a bond or —(CH 2 ) 1-3 —; X a  is O; Ring A is phenyl; Y 4  is —O— or —NH—; each of k4, p4 and m4 is independently 0 or 1. 
     
     
         17 . The compound of any one of  claims 1  to  8 , wherein L 1  is 
       
         
           
           
               
               
           
         
       
       and Z 3  is —NR 12g —. 
     
     
         18 . The compound of  claim 17 , wherein R 12g  is H; Z 1e  is a bond or —(CH 2 ) 1-3 —; Ring A is phenyl; Y 5  is —O— or —NH—; each of k5, p5 and m5 is independently 0 or 1. 
     
     
         19 . The compound of any one of  claims 1  to  8 , wherein L 1  is 
       
         
           
           
               
               
           
         
       
     
     
         20 . The compound of  claim 19 , wherein Z 1f  is a bond or —(CH 2 ) 1-3 —; m6 is 0 or 1. 
     
     
         21 . The compound of any one of  claims 1  to  20 , wherein L 2  is a bond or —(CH 2 )C(O)NH—. 
     
     
         22 . The compound of any one of  claims 1  to  21 , wherein X 1  is C 1 -C 5  alkylene. 
     
     
         23 . The compound of any one of  claims 1  to  21 , wherein X 1  is [—(CH 2 ) 2 O-] 1-5 , —[(CH 2 ) 2 O] 1-5 (CH 2 ) 2 — or —(CH 2 ) 1-3 —NR 14 —(CH 2 ) 1-3 —, and wherein R 14  is H or C 1 -C 6  alkyl. 
     
     
         24 . The compound of any one of  claims 1  to  23 , wherein X 2  is —NHC(═O)—. 
     
     
         25 . The compound of any one of  claims 1  to  24 , wherein X 3  is —S—. 
     
     
         26 . The compound of  claim 1 , selected from the group consisting of: 
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         and pharmaceutically acceptable salts thereof. 
       
     
     
         27 . A compound of Formula (II), 
       
         
           
           
               
               
           
         
         or a pharmaceutically acceptable salt thereof, wherein: 
         R 1  is 
       
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
       
       wherein R 1  is optionally substituted with one or more R A ;
 n is 1, 2 or 3; 
 each R 2a  and R 2b  is independently H, deuterium, halogen or C 1 -C 6  alkyl; 
 each R 3  is independently H, deuterium, C 1 -C 6  alkyl, 
 
       
         
           
           
               
               
           
         
         each R A  is independently deuterium, hydroxyl, halogen, cyano, nitro, optionally substituted C 1 -C 6  alkyl, C 2 -C 6  alkenyl, C 2 -C 6  alkynyl, C 1 -C 6  alkoxy, C 1 -C 6  haloalkyl, C 1 -C 6  haloalkoxy, optionally substituted amino, C 1 -C 6  alkylamino, amino(C 1 -C 6  alkyl), —(C═O)NR 10a R 10b , (C 1 -C 6  alkoxy)C 1 -C 6  alkyl, —O—(C 1 -C 6  alkoxy)C 1 -C 6  alkyl, or optionally substituted C 3 -C 7  cycloalkyl; 
         each of R 4  and R 6  is independently H, halogen, C 1 -C 6  alkyl, C 1 -C 6  haloalkyl, C 1 -C 6  alkoxy, C 1 -C 6  haloalkoxy, optionally substituted C 3 -C 7  cycloalkyl(C 1 -C 3  alkyl), or optionally substituted C 3 -C 7  cycloalkyl; 
         each of R 5a , R 5b  and R 5c  is independently H or C 1 -C 6  alkyl; 
         each of R 7a  and R 7b  is independently H, optionally substituted C 1 -C 6  alkyl, optionally substituted C 2 -C 6  alkenyl, optionally substituted C 2 -C 6  alkynyl, optionally substituted C 6 -C 10  aryl, optionally substituted 5 to 10 membered heteroaryl, optionally substituted C 7 -C 14  aralkyl, optionally substituted 3 to 10 membered heterocyclyl, or optionally substituted C 3 -C 8  carbocyclyl; 
         each of R 8a  and R 8b  is independently H, halogen, C 1 -C 6  alkyl, C 1 -C 6  alkoxy, C 1 -C 6  haloalkyl, C 1 -C 6  haloalkoxy, or C 3 -C 8  carbocyclyl; 
         each of R 9a  and R 9b  is independently H, optionally substituted C 1 -C 6  alkyl, optionally substituted C 6 -C 10  aryl, optionally substituted C 7 -C 14  aralkyl, or optionally substituted C 3 -C 8  carbocyclyl; 
         each R 10a  and R 10b  is independently H or C 1 -C 6  alkyl, or R 10a  and R 10b  together with the nitrogen atom to which they are attached form an optionally substituted 5 or 6 membered heterocyclyl optionally substituted with one or more R 11 ; 
         each R 11  is independently C 1 -C 6  alkyl, C 1 -C 6  alkoxy, C 1 -C 6  haloalkyl, C 1 -C 6  haloalkoxy, (C 1 -C 6  alkoxy)C 1 -C 6  alkyl, —O—(C 1 -C 6  alkoxy)C 1 -C 6  alkyl, optionally substituted amino, halogen, or cyano; or two geminal R 11  form oxo; 
         Q is CH 2  or C═O; 
         L 1  is a bond 
       
       
         
           
           
               
               
           
         
       
       *—Z 1e -Z 3 —(CH 2 ) m5 —, 
       
         
           
           
               
               
           
         
       
       wherein the asterisk * indicates the point of connection to X 1 ;
 each of Z 1a , Z 1b , Z 1c , Z 1d , Z 1e , and Z 1f  is independently a bond or —(CR a R b ) q1 —; 
 Z 2  is —(CR c R d ) q2 —; 
 Z 3  is a bond, O or NR 12g ; 
 each of R a , R b , R c  and R d  is independently H, halogen, hydroxy, C 1 -C 6  alkyl, C 1 -C 6  haloalkyl, C 1 -C 6  alkoxy, C 1 -C 6  haloalkoxy, or optionally substituted C 3 -C 6  cycloalkyl; 
 each q1 and q2 is independently 1, 2 or 3; 
 each X a  and X b  is independently O or S; 
 each Ring A is independently phenyl or a five to six membered heteroaryl, each optionally substituted with one or more R 11 ; 
 each of Y 1 , Y 2 , Y 3 , Y 4 , Y 5  and Y 6  is —NR 12h —, —O—, or —S— 
 each R 12a , R 12b , R 12c , R 12d , R 12e , R 12f , R 12g  and R 12h  is independently H or C 1 -C 6  alkyl; 
 each of m1, m2, m3, m4, m5, m6, k1, k2, k3, k4, k5, k6, p1, p2, p3, p4, p5, and p6 is independently 0, 1, 2, or 3; 
 L 2  is a bond, —(CH 2 ) 1-6 NH—, —(CH 2 ) 0-6 —C(═O)—, or —(CH 2 ) 0-3 —C(═O)NR 3 —; 
 R 13  is H or C 1 -C 6  alkyl; 
 X 1  is C 1 -C 15  alkylene or heteroalkylene; and 
 Ring B is phenyl or a 6 membered heteroaryl, optionally substituted with one or more R 11 . 
 
     
     
         28 . The compound of  claim 27 , wherein the compound of Formula (II) is also represented by Formula (II′): 
       
         
           
           
               
               
           
         
       
       or a pharmaceutically acceptable salt thereof. 
     
     
         29 . The compound of  claim 27  or  28 , wherein R 1  is 
       
         
           
           
               
               
           
         
       
     
     
         30 . The compound of any one of  claims 27  to  29 , wherein R 2a  is H. 
     
     
         31 . The compound of any one of  claims 27  to  30 , wherein R 2b  is C 1 -C 6  alkyl. 
     
     
         32 . The compound of any one of  claims 27  to  31 , wherein R 3  is H. 
     
     
         33 . The compound of any one of  claims 27  to  32 , wherein n is 2. 
     
     
         34 . The compound of any one of  claims 27  to  33 , wherein R 1  is substituted with one R A  and wherein R A  is halogen or optionally substituted C 1 -C 6  alkyl. 
     
     
         35 . The compound of any one of  claims 27  to  34 , wherein each of R 5b  and R 5c  is H. 
     
     
         36 . The compound of any one of  claims 27  to  35 , wherein L 1  is 
       
         
           
           
               
               
           
         
       
     
     
         37 . The compound of  claim 36 , wherein each of R 12a  and R 12b  is H; X a  is O; Z 1a  is a bond or —(CH 2 ) 1-3 —; and m1 is 0 or 1. 
     
     
         38 . The compound of any one of  claims 27  to  35 , wherein L 1  is 
       
         
           
           
               
               
           
         
       
     
     
         39 . The compound of  claim 38 , wherein each of R 12c  and R 12d  is H; X a  is O; Z 2  is —CH 2 —; Z 1b  is a bond or —(CH 2 ) 1-3 —; and m2 is 0 or 1. 
     
     
         40 . The compound of any one of  claims 27  to  35 , wherein L 1  is *—Z 1e -Z 3 —(CH 2 ) m5 — and Z 3  is —NR 12g . 
     
     
         41 . The compound of  claim 40 , wherein R 12g  is H; Z 1e  is a bond or —(CH 2 ) 1-3 —; and m5 is 0 or 1. 
     
     
         42 . The compound of any one of  claims 27  to  35 , wherein L 1  is 
       
         
           
           
               
               
           
         
       
     
     
         43 . The compound of  claim 42 , wherein R 12f  is H; Z 1d  is a bond or —(CH 2 ) 1-3 —; X a  is O; Ring A is phenyl; Y 4  is —O— or —NH—; each of k4, p4 and m4 is independently 0 or 1. 
     
     
         44 . The compound of any one of  claims 27  to  35 , wherein L 1  is 
       
         
           
           
               
               
           
         
       
       and Z 3  is —NR 12g —. 
     
     
         45 . The compound of  claim 44 , wherein R 12g  is H; Z 1e  is a bond or —(CH 2 ) 1-3 —; Ring A is phenyl; Y 5  is —O— or —NH—; each of k5, p5 and m5 is independently 0 or 1. 
     
     
         46 . The compound of any one of  claims 27  to  35 , wherein L 1  is 
       
         
           
           
               
               
           
         
       
     
     
         47 . The compound of  claim 46 , wherein each of R 12c  and R 12d  is H; X a  is O; Z 1b  is a bond or —(CH 2 ) 1-3 —; Z 2  is —(CH 2 ) 1-3 —; Ring A is phenyl; and each of k2, p2 and m2 is independently 0 or 1. 
     
     
         48 . The compound of any one of  claims 27  to  35 , wherein L 1  is 
       
         
           
           
               
               
           
         
       
     
     
         49 . The compound of  claim 46 , wherein Z 1f  is a bond or —(CH 2 ) 1-3 —; m6 is 0 or 1. 
     
     
         50 . The compound of any one of  claims 27  to  49 , wherein X 1  is C 1 -C 8  alkylene. 
     
     
         51 . The compound of any one of  claims 27  to  49 , wherein X 1  is [—(CH 2 ) 2 O-] 1-5 -, —[(CH 2 ) 2 O] 1-5 (CH 2 ) 2 — or —(CH 2 ) 1-3 —NR 14 —(CH 2 ) 1-3 — and wherein R 14  is H or C 1 -C 6  alkyl. 
     
     
         52 . The compound of any one of  claims 27  to  51 , wherein L 2  is a bond, —C(O)—, or —(CH 2 )C(O)NH—. 
     
     
         53 . The compound of any one of  claims 27  to  52 , wherein Ring B is phenyl optionally substituted with one or more R 11 . 
     
     
         54 . The compound of any one of  claims 27  to  52 , wherein Ring B is a 6 membered heteroaryl containing one, two or three nitrogen atoms, optionally substituted with one or more R 11 . 
     
     
         55 . The compound of  claim 54 , wherein Ring B is 
       
         
           
           
               
               
           
         
       
       each optionally substituted with one R 11 . 
     
     
         56 . The compound of  claim 55 , wherein Ring B is 
       
         
           
           
               
               
           
         
       
     
     
         57 . The compound of any one of  claims 53  to  56 , wherein R 11  is halogen. 
     
     
         58 . The compound of any one of  claims 27  to  57 , wherein R 5a  is methyl. 
     
     
         59 . The compound of any one of  claims 27  to  58 , one of R 4  and R 6  is H and the other of R 4  and R 6  is C 1 -C 6  alkyl, C 1 -C 6  haloalkyl, C 1 -C 6  alkoxy, C 1 -C 6  haloalkoxy, C 3 -C 6  cycloalkyl, C 3 -C 6  cycloalkyl(C 1 -C 3  alkyl), trifluoromethyl substituted cyclopropyl, or trifluoromethyl substituted cyclopropyl (C 1 -C 3  alkyl). 
     
     
         60 . The compound of any one of  claims 27  to  59 , wherein R 4  is H and R 6  is cyclopropyl(C 1 -C 3  alkyl). 
     
     
         61 . The compound of  claim 27 , selected from the group consisting of: 
       
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
         
           
           
               
               
           
         
       
       and pharmaceutically acceptable salts thereof. 
     
     
         62 . A pharmaceutical composition comprising a compound of any one of  claims 1  to  61 , or a pharmaceutically acceptable salt thereof, and at least one pharmaceutically acceptable carrier or excipient. 
     
     
         63 . A method of decreasing cellular levels of CDK, comprising contacting one or more cells with an effective amount of a compound of any one of  claims 1  to  61 , or a pharmaceutically acceptable salt thereof. 
     
     
         64 . A method of inhibiting the activity of CDK in a biological sample, comprising contacting the biological sample with an effective amount of a compound of any one of  claims 1  to  61 , or a pharmaceutically acceptable salt thereof. 
     
     
         65 . The method of  claim 63  or  64 , wherein the cell is a cancer cell selected from the group consisting of small cell lung cancer cell, non-small cell lung cancer cell, breast cancer cell, prostate cancer cell, head and neck cancer cell, pancreatic cancer cell, colon cancer cell, rectal cancer cell, teratoma cell, gastric cancer cell, ovarian cancer cell, endometrial cancer cell, brain cancer cell, retinoblastoma cell, leukemia cell, skin cancer cell, melanoma cell, squamous cell carcinoma cell, liposarcoma cell, lymphoma cell, multiple myeloma cell, testicular cancer cell, liver cancer cell, esophageal cancer cell, kidney carcinoma cell, astrogliosis cell, relapsed/refractory multiple myeloma cell, and neuroblastoma cell. 
     
     
         66 . A method of treating or ameliorating a disease, disorder, or condition associated with CDK, comprising administering an effective amount of a compound of any one of  claims 1  to  61 , or a pharmaceutically acceptable salt thereof, or the pharmaceutical composition of  claim 62 , to a subject in need thereof; wherein the disease, disorder, or condition is small cell lung cancer, non-small cell lung cancer, breast cancer, prostate cancer, head and neck cancer, pancreatic cancer, colon cancer, rectal cancer, teratoma, gastric cancer, ovarian cancer, endometrial cancer, brain cancer, retinoblastoma, leukemia, skin cancer, melanoma, squamous cell carcinoma, liposarcoma, lymphoma, multiple myeloma, testicular cancer, liver cancer, esophageal cancer, kidney carcinoma, astrogliosis, relapsed/refractory multiple myeloma, or neuroblastoma. 
     
     
         67 . The method of any one of  claims 63  to  66 , wherein the CDK is a wild-type, a mutant form of CDK, or is overexpressed. 
     
     
         68 . A method of treating or ameliorating cancer, comprising administering an effective amount of a compound of any one of  claims 1  to  61 , or a pharmaceutically acceptable salt thereof, or the pharmaceutical composition of  claim 62  to a subject in need thereof; wherein the cancer is small cell lung cancer, non-small cell lung cancer, breast cancer, prostate cancer, head and neck cancer, pancreatic cancer, colon cancer, rectal cancer, teratoma, gastric cancer, ovarian cancer, endometrial cancer, brain cancer, retinoblastoma, leukemia, skin cancer, melanoma, squamous cell carcinoma, liposarcoma, lymphoma, multiple myeloma, testicular cancer, liver cancer, esophageal cancer, kidney carcinoma, astrogliosis, relapsed/refractory multiple myeloma, or neuroblastoma. 
     
     
         69 . The method of  claim 68 , wherein the cancer is associated with CDK.

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