Bromodomain inhibitors
The present invention relates to substituted heterocyclic derivative compounds, compositions comprising said compounds, and the use of said compounds and compositions for epigenetic regulation by inhibition of bromodomain-mediated recognition of acetyl lysine regions of proteins, such as histones. Said compositions and methods are useful for the treatment of cancer and neoplastic disease.
1. A compound of Formula (IIa), or a pharmaceutically acceptable salt thereof,
wherein,
R 2 is CH 3 , CH 2 CH 3 , CH 2 CF 3 , CH 2 F, CHF 2 , CF 3 , CH 2 D, CHD 2 , or CD 3 ;
X6 is C—H;
X5 is C—R 5 ;
R 5 is hydrogen, halogen, —OH, —CN, —OR 61 , —NHR 61 , —N(R 61 ) 2 , alkyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl, heterocyclyl, heterocyclylalkyl, heteroaryl, or heteroarylalkyl, wherein each R 61 is independently selected from alkyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl, heterocyclyl, heterocyclylalkyl, heteroaryl, or heteroarylalkyl;
R 6 is hydrogen, halogen, —OH, —CN, alkyl, cycloalkyl, cycloalkylalkyl, amino, alkylamino, dialkylamino, cycloalkylalkylamino, alkoxy, or cycloalkylalkoxy;
R A is
X2 is N;
R 13 is —Y—Z;
Y is selected from a bond, or —CH 2 —;
Z is selected from —SO 2 R 21 , —N(R 22 )SO 2 R 21 , —SO 2 N(R 22 ) 2 , —N(R 22 )SO 2 N(R 22 ) 2 , —CON(R 22 ) 2 , —N(R 22 )CO 2 R 21 , —N(R 22 )CON(R 22 ) 2 , —N(R 22 )COR 21 , —OC(O)N(R 22 ) 2 , —OSO 2 N(R 22 ) 2 , or —N(R 22 )SO 3 R 21 ;
X3 is N;
X4 is C—R 15 , wherein R 15 is hydrogen, halogen, —CN, alkyl, or alkoxy;
R 16 is hydrogen, halogen, or —W—X, wherein W is a bond, —O—, —S—, or —NH—, and X is selected from alkyl, aryl, aralkyl, cycloalkyl, cycloalkylalkyl, heterocyclyl, heterocyclylalkyl, heteroaryl, or heteroarylalkyl;
each R 21 is independently selected from alkyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl, heterocyclyl, heterocyclylalkyl, heteroaryl, or heteroarylalkyl; and
each R 22 is independently selected from hydrogen, alkyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl, heterocyclyl, heterocyclylalkyl, heteroaryl, or heteroarylalkyl.
2. The compound of claim 1 , or a pharmaceutically acceptable salt thereof, wherein R 5 is hydrogen, halogen, —OR 61 , or alkyl; R 61 is alkyl; and R 6 is hydrogen, halogen, alkyl, alkoxy.
3. The compound of claim 2 having the structure of Formula (IIb), or a pharmaceutically acceptable salt thereof,
wherein,
R 2 is CH 3 ;
X6 is C—H;
X5 is C—R 5 ;
R 5 is hydrogen;
R 6 is halogen or alkyl;
R A is
X2 is N;
R 13 is —Y—Z;
Y is selected from a bond, or —CH 2 —;
Z is selected from —SO 2 R 21 , —N(R 22 )SO 2 R 21 , —SO 2 N(R 22 ) 2 , —N(R 22 )SO 2 N(R 22 ) 2 , —CON(R 22 ) 2 , —N(R 22 )CO 2 R 21 , —N(R 22 )CON(R 22 ) 2 , —N(R 22 )COR 21 , —OC(O)N(R 22 ) 2 , —OSO 2 N(R 22 ) 2 , or —N(R 22 )SO 3 R 21 ;
X3 is N;
X4 is C—R 15 , wherein R 15 is hydrogen, halogen, —CN, alkyl, or alkoxy;
R 16 is —W—X, wherein W is a bond, —O—, —S—, or —NH—, and X is selected from alkyl, aryl, aralkyl, cycloalkyl, cycloalkylalkyl, heterocyclyl, heterocyclylalkyl, heteroaryl, or heteroarylalkyl;
each R 21 is independently selected from alkyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl, heterocyclyl, heterocyclylalkyl, heteroaryl, or heteroarylalkyl; and
each R 22 is independently selected from hydrogen, alkyl, cycloalkyl, cycloalkylalkyl, aryl, aralkyl, heterocyclyl, heterocyclylalkyl, heteroaryl, or heteroarylalkyl.
4. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein R 6 is halogen.
5. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein R 6 is alkyl.
6. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein R 6 is C 1 -C 3 alkyl.
7. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein R 6 is C 1 alkyl.
8. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein Y is a bond.
9. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein Y is a —CH 2 —.
10. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein Z is —SO 2 R 21 .
11. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein Z is —N(R 22 )SO 2 R 21 .
12. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein R 21 is alkyl, cycloalkyl, or cycloalkylalkyl.
13. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein R 21 is alkyl.
14. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein R 21 is C 1 -C 2 alkyl.
15. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein R 22 is hydrogen.
16. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein W is —O—.
17. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein W is a bond.
18. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein X is alkyl.
19. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein X is aryl.
20. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein X is cycloalkylalkyl.
21. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein W is —O— and X is aryl.
22. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein W is —O— and X is cycloalkylalkyl.
23. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein W is a bond and X is alkyl.
24. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, wherein W is a bond and X is cycloalkylalkyl.
25. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, having the structure of:
26. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, having the structure of:
27. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, having the structure of:
28. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, having the structure of:
29. The compound of claim 2 , or a pharmaceutically acceptable salt thereof, having the structure of:
30. A pharmaceutical composition comprising a pharmaceutically acceptable excipient and a compound of Formula (IIa) as described in claim 1 , or a pharmaceutically acceptable salt thereof.