1H-pyrazolo[3,4-b]pyridines and therapeutic uses thereof
Provided herein are compounds according to Formulas (I) or (II) and pharmaceutically acceptable salts thereof, and compositions comprising the same, for use in various methods, including treating cancer, abnormal cellular proliferation, angiogenesis, Alzheimer's disease, lung disease, osteoarthritis, idiopathic pulmonary fibrosis and neurological conditions/disorders/diseases.
1. A method of inhibiting one or more proteins in the Wnt pathway, the method comprising contacting a cell with an effective amount of a compound of Formula I, or a pharmaceutically acceptable salt thereof:
wherein:
R 1 is H;
R 2 is independently selected from the group consisting of H and —(C 1-9 alkyl) n N(R 9 ) 2 ;
R 3 is H;
R 4 is independently selected from the group consisting of -aryl(R 13 ) q , -furyl(R 15 ) q , and -thiophenyl(R 15 ) q ;
R 5 is H;
each R 8 is a substituent attached to the heterocyclyl ring and independently selected from the group consisting of H, halide, and —C 1-4 alkyl;
each R 9 is independently selected from the group consisting of H, —C 1-9 alkyl, —(C 1-3 alkyl) n carbocyclyl and —(C 1-9 alkyl)N(R 16 ) 2 ;
each R 13 is 1-2 substituents each attached to the aryl ring and independently selected from the group consisting of H, halide, —(C 1-3 alkyl) n heterocyclyl(R 8 ) q , —(C 1-9 alkyl) n N(R 9 ) 2 and —(C 1-9 alkyl) n NHSO 2 R 18 ;
each R 15 is a substituent attached to the heteroaryl ring and independently selected from the group consisting of H, lower alkyl, halide, —CF 3 , CN, and —C(═O)(C 1-3 alkyl);
each R 16 is independently selected from the group consisting of H and lower alkyl;
each R 18 is a lower alkyl;
A is C;
each q is independently an integer of 1 or 2; and
each n is independently an integer of 0 or 1.
2. The method of claim 1 , wherein the R 4 aryl is phenyl.
3. The method of claim 1 , wherein the R 13 heterocyclyl is selected from the group consisting of azetidinyl(R 8 ) q , pyrrolidinyl(R 8 ) q , piperidinyl(R 8 ) q , piperazinyl(R 8 ) q , and morpholinyl(R 8 ) q .
4. The method of claim 1 , wherein R 2 is H.
5. The method of claim 1 , wherein R 2 is —(C 1-9 alkyl) n N(R 9 ) 2 .
6. The method of claim 5 , wherein R 2 is CH 2 N(R 9 ) 2 or —N(R 9 ) 2 .
7. The method of claim 6 , wherein R 9 is independently selected from the group consisting of H, Me, Et, n-propyl, isopropyl, and —CH 2 carbocyclyl.
8. The method of claim 7 , wherein R 4 is phenyl(R 13 ) q .
9. The method of claim 7 , wherein R 4 is -furyl(R 15 ) q .
10. The method of claim 7 , wherein R 4 is -thiophenyl(R 15 ) q .
11. The method of claim 8 , wherein R 13 is one substituent attached to the phenyl ring and the substituent is a fluorine atom.
12. The method of claim 8 , wherein R 13 is two substituents each attached to the phenyl ring and the substituents are a fluorine atom and —N(R 9 ) 2 , wherein R 9 is independently selected from the group consisting of H and CH 2 CH 2 N(R 16 ) 2 , and wherein R 16 is is independently selected from the group consisting of H, Me, and Et.
13. The method of claim 8 , wherein R 13 is two substituents each attached to the phenyl ring and the substituents are a fluorine atom and —(CH 2 ) n NHSO 2 R 18 , wherein R 9 is independently selected from the group consisting of Me and Et.
14. The method of claim 10 , wherein R 15 is one substituent attached to the thiophenyl ring and the substituents are selected from the group consisting of H, F, Me, and —C(═O)Me.
15. The method of claim 1 , wherein the compound of Formula (I) has a structure selected from the group consisting of:
or a pharmaceutically acceptable salt thereof.
16. The method of claim 1 , having a structure selected from the group consisting of:
or a pharmaceutically acceptable salt thereof.
17. The method of claim 1 , wherein the cell is a human cell.
18. The method of claim 17 , wherein the human cell is a cancerous cell.
19. The method of claim 18 , wherein the cancerous cell is a colon cancer cell.
20. The method of claim 1 , wherein the contacting is in vitro.
21. A method of treating cancer in a patient, wherein the cancer is selected from: hepatocellular carcinoma, colon cancer, colorectal cancer, breast cancer, pancreatic cancer leukemia, lymphoma, sarcoma, ovarian cancer, lung cancers, melanoma, squamous cell carcinoma, and adenocarcinoma, the method comprising administering to the patient a therapeutically effective amount of a compound of Formula I, or a pharmaceutically acceptable salt thereof:
wherein:
R 1 is H;
R 2 is independently selected from the group consisting of H and —(C 1-9 alkyl) n N(R 9 ) 2 ;
R 3 is H;
R 4 is independently selected from the group consisting of -aryl(R 13 ) q , -furyl(R 15 ) q , and -thiophenyl(R 15 ) q ;
R 5 is H;
each R 8 is a substituent attached to the heterocyclyl ring and independently selected from the group consisting of H, halide, and —C 1-4 alkyl;
each R 9 is independently selected from the group consisting of H, —C 1-9 alkyl, —(C 1-3 alkyl) n carbocyclyl and —(C 1-9 alkyl)N(R 16 ) 2 ;
each R 13 is 1-2 substituents each attached to the aryl ring and independently selected from the group consisting of H, halide, —(C 1-3 alkyl) n heterocyclyl(R 8 ) q , —(C 1-9 alkyl) n N(R 9 ) 2 and —(C 1-9 alkyl) n NHSO 2 R 18 ;
each R 15 is a substituent attached to the heteroaryl ring and independently selected from the group consisting of H, lower alkyl, halide, —CF 3 , CN, and —C(═O)(C 1-3 alkyl);
each R 16 is independently selected from the group consisting of H and lower alkyl;
each R 18 is a lower alkyl;
A is C;
each q is independently an integer of 1 or 2; and
each n is independently an integer of 0 or 1.
22. The method of claim 21 , wherein the R 4 aryl is phenyl.
23. The method of claim 21 , wherein the R 13 heterocyclyl is selected from the group consisting of azetidinyl(R 8 ) q , pyrrolidinyl(R 8 ) q , piperidinyl(R 8 ) q , piperazinyl(R 8 ) q , and morpholinyl(R 8 ) q .
24. The method of claim 21 , wherein R 2 is H.
25. The method of claim 21 , wherein R 2 is —(C 1-9 alkyl) n N(R 9 ) 2 .
26. The method of claim 25 , wherein R 2 is —CH 2 N(R 9 ) 2 or —N(R 9 ) 2 .
27. The method of claim 26 , wherein R 9 is independently selected from the group consisting of H, Me, Et, n-propyl, isopropyl, and —CH 2 carbocyclyl.
28. The method of claim 27 , wherein R 4 is phenyl(R 13 ) q .
29. The method of claim 27 , wherein R 4 is -furyl(R 13 ) q .
30. The method of claim 27 , wherein R 4 is -thiophenyl(R 15 ) q .
31. The method of claim 28 , wherein R 13 is one substituent attached to the phenyl ring and the substituent is a fluorine atom.
32. The method of claim 28 , wherein R 13 is two substituents each attached to the phenyl ring and the substituents are a fluorine atom and —N(R 9 ) 2 , wherein R 9 is independently selected from the group consisting of H and —CH 2 CH 2 N(R 16 ) 2 , and wherein R 16 is is independently selected from the group consisting of H, Me, and Et.
33. The method of claim 28 , wherein R 13 is two substituents each attached to the phenyl ring and the substituents are a fluorine atom and —(CH 2 ) n NHSO 2 R 18 , wherein R 9 is independently selected from the group consisting of Me and Et.
34. The method of claim 30 , wherein R 15 is one substituent attached to the thiophenyl ring and the substituents are selected from the group consisting of H, F, Me, and —C(═O)Me.
35. The method of claim 21 , wherein the compound of Formula (I) has a structure selected from the group consisting of:
or a pharmaceutically acceptable salt thereof.
36. The method of claim 21 , having a structure selected from the group consisting of:
pharmaceutically acceptable salt thereof.
37. The method of claim 21 , wherein the cancer is hepatocellular carcinoma.
38. The method of claim 21 , wherein the cancer is colon cancer.
39. The method of claim 21 , wherein the cancer is colorectal cancer.
40. The method of claim 21 , wherein the cancer is breast cancer.
41. The method of claim 21 , wherein the cancer is pancreatic cancer.
42. The method of claim 21 , wherein the cancer is leukemia.
43. The method of claim 21 , wherein the cancer is lymphoma.
44. The method of claim 21 , wherein the cancer is sarcoma.
45. The method of claim 21 , wherein the cancer is ovarian cancer.
46. The method of claim 21 , wherein the cancer is lung cancers.
47. The method of claim 46 , wherein the lung cancer is selected from the group consisting of squamous cell, undifferentiated small cell, undifferentiated large cell, and adenocarcinoma; alveolar and bronchiolar carcinoma; bronchial adenoma; sarcoma; lymphoma; chondromatous hamartoma; and mesothelioma.
48. The method of claim 21 , wherein the cancer is melanoma.
49. The method of claim 21 , wherein the cancer is squamous cell carcinoma.
50. The method of claim 21 , wherein the cancer is adenocarcinoma.
51. The method of claim 21 , wherein the patient is a human.
52. The method of claim 1 , wherein the compound inhibits a kinase activity.
53. The method of claim 52 , wherein the protein kinase is from the CDK, VEGF, CLK, HIPK, Abl, JAK, or CHK families of kinases.