Sting agonist compounds
View Patent ↗Compounds of general formula (I), of general formula (II), of general formula (III), of general formula (IV), of general formula (V), of general formula (VI), and their pharmaceutically acceptable salts, wherein all variables are defined herein, that may be useful as inductors of type I interferon production, specifically as STING active agents, are provided. Also provided are compositions comprising such compounds, processes for the synthesis of such compounds, and to uses of such compounds, including administration of such compounds to induce immune response, to induce STING-dependent type I interferon production, and/or to treat a cell proliferation disorder, such as cancer.
1. A compound according to general formula (I):
or a pharmaceutically acceptable salt thereof, wherein
each A-R 1 is independently selected from the group consisting of C—R 1 and N;
each R 1 is independently selected from the group consisting of H, halogen, OR 6 , N(R 6 ) 2 , C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 alkyl substituted by OR 6 , C 1 -C 6 alkyl substituted by N(R 6 ) 2 , COOR 6 , and C(O)N(R 6 ) 2 ;
each R 2 is independently selected from the group consisting of H, halogen, CN, OR 6 , N(R 6 ) 2 , COOR 6 , C(O)N(R 6 ) 2 , SO 2 R 6 , C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 alkyl substituted by OR 6 , C 2 -C 6 alkenyl, C 2 -C 6 haloalkenyl, C 2 -C 6 alkenyl substituted by OR 6 , C 2 -C 6 alkynyl, C 2 -C 6 haloalkynyl, C 2 -C 6 alkynyl substituted by OR 6 , C 3 -C 6 cycloalkyl, and a 3- to 6-membered heterocyclic ring including 1 to 2 ring members selected from the group consisting of O, S, and N(R 6 );
R 3 and R 4 are independently selected from the group consisting of O—(C 1 -C 4 alkylene or haloalkylene), C 1 -C 5 alkylene or haloalkylene, and N(R 6 )—(C 1 -C 4 alkylene or haloalkylene);
optionally R 4 may be taken together with an adjacent C—R 1 and the atom to which they are attached to form fused ring E, which is selected from phenyl or a 5- or 6-membered heterocyclic ring including 1 to 2 ring members selected from the group consisting of O, S, N, and N(R 6 ) wherein the bond to R 3 from said ring E is from an atom on said ring E with an open valence for substitution and wherein said phenyl or heterocyclic ring is optionally substituted with one or more members of the group consisting of halogen, C 1 -C 3 alkyl, and C 1 -C 3 haloalkyl;
each R 6 is independently selected from the group consisting of H, C 1 -C 6 alkyl, and C 1 -C 6 haloalkyl;
each X 1 is independently selected from the group consisting of C═O, —CH 2 —, —CHF—, and —CF 2 —;
each X 2 is independently selected from (C(R 8 ) 2 ) (1-3) , wherein each R 8 is independently selected from the group consisting of H, halogen, C 1 -C 6 alkyl, CN, OR 6 , N(R 6 ) 2 , C 1 -C 6 haloalkyl, C 3 -C 6 cycloalkyl, C 1 -C 6 alkyl substituted by OR 6 , and C 1 -C 6 alkyl substituted by N(R 6 ) 2 ;
optionally 2 R 8 on different carbon atoms may be taken together, along with the atoms to which they are attached, to form a 3- to 6-membered fused ring; and
optionally 2 R 8 on a single carbon atom may be taken together, along with the atom to which they are attached, to form a 3- to 6-membered spirocycle;
each X 3 is independently selected from the group consisting of COOR 6 , C(O)SR 6 , C(S)OR 6 ,
SO 2 R 6 , C(O)N(R 9 ) 2 , and CN; and
each R 9 is independently selected from the group consisting of H, COOR 6 , and SO 2 R 6 .
2. The compound according to claim 1 , or a pharmaceutically acceptable salt thereof, wherein each
is independently selected from the group consisting of
3. A compound of general formula (II):
or a pharmaceutically acceptable salt thereof, wherein
each A-R 1 is independently selected from the group consisting of C—R 1 and N;
each R 1 is independently selected from the group consisting of H, halogen, OR 6 , N(R 6 ) 2 , C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 alkyl substituted by OR 6 , C 1 -C 6 alkyl substituted by N(R 6 ) 2 , COOR 6 , and C(O)N(R 6 ) 2 ;
each R 2 is independently selected from the group consisting of H, halogen, CN, OR 6 , N(R 6 ) 2 , COOR 6 , C(O)N(R 6 ) 2 , SO 2 R 6 , C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 alkyl substituted by OR 6 , C 2 -C 6 alkenyl, C 2 -C 6 haloalkenyl, C 2 -C 6 alkenyl substituted by OR 6 , C 2 -C 6 alkynyl, C 2 -C 6 haloalkynyl, C 2 -C 6 alkynyl substituted by OR 6 , C 3 -C 6 cycloalkyl, and a 3- to 6-membered heterocyclic ring including 1 to 2 ring members selected from the group consisting of O, S, and N(R 6 );
R 3 and R 4 are independently selected from the group consisting of O—(C 1 -C 4 alkylene or haloalkylene), C 1 -C 5 alkylene or haloalkylene, and N(R 6 )—(C 1 -C 4 alkylene or haloalkylene);
optionally R 4 may be taken together with an adjacent C—R 1 and the atom to which they are attached to form fused ring E, which is selected from phenyl or a 5- or 6-membered heterocyclic ring including 1 to 2 ring members selected from the group consisting of O, S, N, and N(R 6 ) wherein the bond to R 3 from said ring E is from an atom on said ring E with an open valence for substitution and wherein said phenyl or heterocyclic ring is optionally substituted with one or more members of the group consisting of halogen, C 1 -C 3 alkyl, and C 1 -C 3 haloalkyl;
each R 6 is independently selected from the group consisting of H, C 1 -C 6 alkyl, and C 1 -C 6 haloalkyl;
each X 1 is independently selected from the group consisting of C═O, —CH 2 —, —CHF—, and —CF 2 —;
each X 2 is independently selected from (C(R 8 ) 2 ) (1-3) , wherein each R 8 is independently selected from the group consisting of H, halogen, C 1 -C 6 alkyl, CN, OR 6 , N(R 6 ) 2 , C 1 -C 6 haloalkyl, C 3 -C 6 cycloalkyl, C 1 -C 6 alkyl substituted by OR 6 , and C 1 -C 6 alkyl substituted by N(R 6 ) 2 ;
optionally 2 R 8 on different carbon atoms may be taken together, along with the atoms to which they are attached, to form a 3- to 6-membered fused ring; and
optionally 2 R 8 on a single carbon atom may be taken together, along with the atom to which they are attached, to form a 3- to 6-membered spirocycle;
each X 3 is independently selected from the group consisting of COOR 6 , C(O)SR 6 , C(S)OR 6 ,
SO 2 R 6 , C(O)N(R 9 ) 2 , and CN; and
each R 9 is independently selected from the group consisting of H, COOR 6 , and SO 2 R 6 .
4. The compound according to claim 3 , or a pharmaceutically acceptable salt thereof, wherein each
is independently selected from the group consisting of
5. A compound of general formula (III):
or a pharmaceutically acceptable salt thereof, wherein
each A-R 1 is independently selected from the group consisting of C—R 1 and N;
each R 1 is independently selected from the group consisting of H, halogen, OR 6 , N(R 6 ) 2 , C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 alkyl substituted by OR 6 , C 1 -C 6 alkyl substituted by N(R 6 ) 2 , COOR 6 , and C(O)N(R 6 ) 2 ;
each R 2 is independently selected from the group consisting of H, halogen, CN, OR 6 , N(R 6 ) 2 , COOR 6 , C(O)N(R 6 ) 2 , SO 2 R 6 , C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 alkyl substituted by OR 6 , C 2 -C 6 alkenyl, C 2 -C 6 haloalkenyl, C 2 -C 6 alkenyl substituted by OR 6 , C 2 -C 6 alkynyl, C 2 -C 6 haloalkynyl, C 2 -C 6 alkynyl substituted by OR 6 , C 3 -C 6 cycloalkyl, and a 3- to 6-membered heterocyclic ring including 1 to 2 ring members selected from the group consisting of O, S, and N(R 6 );
R 3 and R 4 are independently selected from the group consisting of O—(C 1 -C 4 alkylene or haloalkylene), C 1 -C 5 alkylene or haloalkylene, and N(R 6 )—(C 1 -C 4 alkylene or haloalkylene);
optionally R 3 may be taken together with an adjacent C—R 1 and the atom to which they are attached to form fused ring G, which is selected from phenyl or a 5- or 6-membered heterocyclic ring including 1 to 2 ring members selected from the group consisting of O, S, N, and N(R 6 ) wherein the bond to R 3 from said ring G is from an atom on said ring G with an open valence for substitution and wherein said phenyl or heterocyclic ring is optionally substituted with one or more members of the group consisting of halogen, C 1 -C 3 alkyl, and C 1 -C 3 haloalkyl;
optionally R 4 may be taken together with an adjacent C—R 1 and the atom to which they are attached to form fused ring E, which is selected from phenyl or a 5- or 6-membered heterocyclic ring including 1 to 2 ring members selected from the group consisting of O, S, N, and N(R 6 ) wherein the bond to R 4 from said ring E is from an atom on said ring E with an open valence for substitution and wherein said phenyl or heterocyclic ring is optionally substituted with one or more members of the group consisting of halogen, C 1 -C 3 alkyl, and C 1 -C 3 haloalkyl;
each R 6 is independently selected from the group consisting of H, C 1 -C 6 alkyl, and C 1 -C 6 haloalkyl;
each X 1 is independently selected from the group consisting of C═O, —CH 2 —, —CHF—, and —CF 2 —;
each X 2 is independently selected from (C(R 8 ) 2 ) (1-3) , wherein each R 8 is independently selected from the group consisting of H, halogen, C 1 -C 6 alkyl, CN, OR 6 , N(R 6 ) 2 , C 1 -C 6 haloalkyl, C 3 -C 6 cycloalkyl, C 1 -C 6 alkyl substituted by OR 6 , and C 1 -C 6 alkyl substituted by N(R 6 ) 2 ;
optionally 2 R 8 on different carbon atoms may be taken together, along with the atoms to which they are attached, to form a 3- to 6-membered fused ring; and
optionally 2 R 8 on a single carbon atom may be taken together, along with the atom to which they are attached, to form a 3- to 6-membered spirocycle;
each X 3 is independently selected from the group consisting of COOR 6 , C(O)SR 6 , C(S)OR 6 ,
SO 2 R 6 , C(O)N(R 9 ) 2 , and CN; and
each R 9 is independently selected from the group consisting of H, COOR 6 , and SO 2 R 6 .
6. The compound according to claim 5 , or a pharmaceutically acceptable salt thereof, wherein
is independently selected from the group consisting of
is selected from the group consisting of
7. A compound of general formula (IV):
or a pharmaceutically acceptable salt thereof, wherein
each A-R 1 is independently selected from the group consisting of C—R 1 and N;
each R 1 is independently selected from the group consisting of H, halogen, OR 6 , N(R 6 ) 2 , C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 alkyl substituted by OR 6 , C 1 -C 6 alkyl substituted by N(R 6 ) 2 , COOR 6 , and C(O)N(R 6 ) 2 ;
each R 2 is independently selected from the group consisting of H, halogen, CN, OR 6 , N(R 6 ) 2 , COOR 6 , C(O)N(R 6 ) 2 , SO 2 R 6 , C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 alkyl substituted by OR 6 , C 2 -C 6 alkenyl, C 2 -C 6 haloalkenyl, C 2 -C 6 alkenyl substituted by OR 6 , C 2 -C 6 alkynyl, C 2 -C 6 haloalkynyl, C 2 -C 6 alkynyl substituted by OR 6 , C 3 -C 6 cycloalkyl, and a 3- to 6-membered heterocyclic ring including 1 to 2 ring members selected from the group consisting of O, S, and N(R 6 );
R 3 and R 4 are independently selected from the group consisting of O—(C 1 -C 4 alkylene or haloalkylene), C 1 -C 5 alkylene or haloalkylene, and N(R 6 )—(C 1 -C 4 alkylene or haloalkylene);
each R 6 is independently selected from the group consisting of H, C 1 -C 6 alkyl, and C 1 -C 6 haloalkyl;
each X 1 is independently selected from the group consisting of C═O, —CH 2 —, —CHF—, and —CF 2 —;
each X 2 is independently selected from (C(R 8 ) 2 ) (1-3) , wherein each R 8 is independently selected from the group consisting of H, halogen, C 1 -C 6 alkyl, CN, OR 6 , N(R 6 ) 2 , C 1 -C 6 haloalkyl, C 3 -C 6 cycloalkyl, C 1 -C 6 alkyl substituted by OR 6 , and C 1 -C 6 alkyl substituted by N(R 6 ) 2 ;
optionally 2 R 8 on different carbon atoms may be taken together, along with the atoms to which they are attached, to form a 3- to 6-membered fused ring; and
optionally 2 R 8 on a single carbon atom may be taken together, along with the atom to which they are attached, to form a 3- to 6-membered spirocycle;
each X 3 is independently selected from the group consisting of COOR 6 , C(O)SR 6 , C(S)OR 6 ,
SO 2 R 6 , C(O)N(R 9 ) 2 , and CN; and
each R 9 is independently selected from the group consisting of H, COOR 6 , and SO 2 R 6 .
8. The compound according to claim 7 , or a pharmaceutically acceptable salt thereof, wherein
is independently selected from the group consisting of
is selected from the group consisting of
9. A compound of general formula (V):
or a pharmaceutically acceptable salt thereof, wherein
each A-R 1 is independently selected from the group consisting of C—R 1 and N;
each R 1 is independently selected from the group consisting of H, halogen, OR 6 , N(R 6 ) 2 , C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 alkyl substituted by OR 6 , C 1 -C 6 alkyl substituted by N(R 6 ) 2 , COOR 6 , and C(O)N(R 6 ) 2 ;
R 3 and R 4 are independently selected from the group consisting of O—(C 1 -C 4 alkylene or haloalkylene), C 1 -C 5 alkylene or haloalkylene, and N(R 6 )—(C 1 -C 4 alkylene or haloalkylene);
each X 1 is independently selected from the group consisting of C═O, —CH 2 —, —CHF—, and —CF 2 —;
each X 2 is independently selected from (C(R 8 ) 2 ) (1-3) , wherein each R 8 is independently selected from the group consisting of H, halogen, C 1 -C 6 alkyl, CN, OR 6 , N(R 6 ) 2 , C 1 -C 6 haloalkyl, C 3 -C 6 cycloalkyl, C 1 -C 6 alkyl substituted by OR 6 , and C 1 -C 6 alkyl substituted by N(R 6 ) 2 ;
optionally 2 R 8 on different carbon atoms may be taken together, along with the atoms to which they are attached, to form a 3- to 6-membered fused ring; and
optionally 2 R 8 on a single carbon atom may be taken together, along with the atom to which they are attached, to form a 3- to 6-membered spirocycle;
each X 3 is independently selected from the group consisting of COOR 6 , C(O)SR 6 , C(S)OR 6 ,
SO 2 R 6 , C(O)N(R 9 ) 2 , and CN; and
each R 9 is independently selected from the group consisting of H, COOR 6 , and SO 2 R 6 .
10. The compound according to claim 9 , or a pharmaceutically acceptable salt thereof, wherein each
is independently selected from the group consisting of
11. A compound of general formula (VI):
or a pharmaceutically acceptable salt thereof, wherein
each A-R 1 is independently selected from the group consisting of C—R 1 and N;
each R 1 is independently selected from the group consisting of H, halogen, OR 6 , N(R 6 ) 2 , C 1 -C 6 alkyl, C 1 -C 6 haloalkyl, C 1 -C 6 alkyl substituted by OR 6 , C 1 -C 6 alkyl substituted by N(R 6 ) 2 , COOR 6 , and C(O)N(R 6 ) 2 ;
R 3 and R 4 are independently selected from the group consisting of O—(C 1 -C 4 alkylene or haloalkylene), C 1 -C 5 alkylene or haloalkylene, and N(R 6 )—(C 1 -C 4 alkylene or haloalkylene);
each R 6 is independently selected from the group consisting of H, C 1 -C 6 alkyl, and C 1 -C 6 haloalkyl;
each X 1 is independently selected from the group consisting of C═O, —CH 2 —, —CHF—, and —CF 2 —;
each X 2 is independently selected from (C(R 8 ) 2 ) (1-3) , wherein each R 8 is independently selected from the group consisting of H, halogen, C 1 -C 6 alkyl, CN, OR 6 , N(R 6 ) 2 , C 1 -C 6 haloalkyl, C 3 -C 6 cycloalkyl, C 1 -C 6 alkyl substituted by OR 6 , and C 1 -C 6 alkyl substituted by N(R 6 ) 2 ;
optionally 2 R 8 on different carbon atoms may be taken together, along with the atoms to which they are attached, to form a 3- to 6-membered fused ring; and
optionally 2 R 8 on a single carbon atom may be taken together, along with the atom to which they are attached, to form a 3- to 6-membered spirocycle;
each X 3 is independently selected from the group consisting of COOR 6 , C(O)SR 6 , C(S)OR 6 ,
SO 2 R 6 , C(O)N(R 9 ) 2 , and CN; and
each R 9 is independently selected from the group consisting of H, COOR 6 , and SO 2 R 6 .
12. The compound according to claim 11 , or a pharmaceutically acceptable salt thereof, wherein each
is independently selected from the group consisting of
13. A compound selected from the group consisting of
or a pharmaceutically acceptable salt thereof.
14. A compound selected from the group consisting of
or a pharmaceutically acceptable salt thereof.
15. The compound according to claim 14 , wherein the compound is a
16. A compound selected from the group consisting of
or a pharmaceutically acceptable salt thereof.
17. The compound according to claim 16 , wherein the compound is
18. A compound selected from the group consisting of
or a pharmaceutically acceptable salt thereof.
19. The compound according to claim 18 , wherein the compound is
20. A compound selected from the group consisting of
or a pharmaceutically acceptable salt thereof.
21. The compound according to claim 20 , wherein the compound is
22. A compound selected from the group consisting of
or a pharmaceutically acceptable salt thereof.
23. The compound according to claim 22 , wherein the compound is
24. A compound selected from the group consisting of
or a pharmaceutically acceptable salt thereof.
25. The compound according to claim 24 , wherein the compound is
26. A pharmaceutical composition comprising a compound according to claim 1 , or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier.
27. A pharmaceutical composition comprising a compound according to claim 13 , or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier.
28. A method of inducing an immune response in a subject, said method comprising:
(a) administering a therapeutically effective amount of a compound according to claim 1 , or a pharmaceutically acceptable salt thereof, to the subject.
29. A method of inducing an immune response in a subject, said method comprising:
(a) administering a therapeutically effective amount of a pharmaceutical composition according to claim 26 to the subject.
30. A method of inducing STING-dependent type I interferon production in a subject, said method comprising administering a therapeutically effective amount of a compound according to claim 1 , or a pharmaceutically acceptable salt thereof, to the subject.
31. A method of inducing STING-dependent type I interferon production in a subject, said method comprising administering a therapeutically effective amount of a pharmaceutical composition according to claim 26 to the subject.
32. A method of treating a cell proliferation disorder in a subject, said method comprising administering a therapeutically effective amount of a compound according to claim 1 , or a pharmaceutically acceptable salt thereof, to the subject.
33. The method of claim 32 , wherein the cell proliferation disorder is cancer.
34. A method of treating a cell proliferation disorder in a subject, said method comprising administering a therapeutically effective amount of a pharmaceutical composition according to claim 26 to the subject.
35. The method of claim 34 , wherein the cell proliferation disorder is cancer.
36. A method of inducing an immune response in a subject, said method comprising:
(a) administering a therapeutically effective amount of a compound according to claim 13 , or a pharmaceutically acceptable salt thereof, to the subject.
37. A method of inducing an immune response in a subject, said method comprising:
(a) administering a therapeutically effective amount of a pharmaceutical composition according to claim 27 to the subject.
38. A method of inducing STING-dependent type I interferon production in a subject, said method comprising administering a therapeutically effective amount of a compound according to claim 13 , or a pharmaceutically acceptable salt thereof, to the subject.
39. A method of inducing STING-dependent type I interferon production in a subject, said method comprising administering a therapeutically effective amount of a pharmaceutical composition according to claim 23 to the subject.
40. A method of treating a cell proliferation disorder in a subject, said method comprising administering a therapeutically effective amount of a compound according to claim 13 , or a pharmaceutically acceptable salt thereof, to the subject.
41. The method of claim 40 , wherein the cell proliferation disorder is cancer.
42. A method of treating a cell proliferation disorder in a subject, said method comprising administering a therapeutically effective amount of a pharmaceutical composition according to claim 27 to the subject.
43. The method of claim 42 , wherein the cell proliferation disorder is cancer.