IP Library Granted Patent US 11,332,473
Granted Patent B2
US 11,332,473 · App. 16/843,713 · Granted May 17, 2022

Substituted pyrazolo[3,4-d]pyrimidines as Wee1 inhibitors

Inventors: Sarvajit Chakravarty (Edmond, OK); Son Minh Pham (San Francisco, CA); Jayakanth Kankanala (St. Paul, MN); Brahmam Pujala (Greater Noida, IN); Sanjeev Soni (Noida, IN); Puja Jaiswal (Greater Noida, IN); Deepak Palve (Noida, IN); Varun Kumar (Noida, IN)
Assignee: NUVATION BIO INC.
C07D487/04A61P35/04A61K45/06
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Quick Facts
Patent No.
US 11,332,473
App. No.
16/843,713
Granted
May 17, 2022
Kind
B2
Abstract

This invention provides for substituted pyrazolo[3,4-d]pyrimidine compounds of the Formula (I): as Wee1 inhibitors. The substituted pyrazolo[3,4-d]pyrimidine compounds may find use as therapeutic agents for the treatment of diseases. The substituted pyrazolo[3,4-d]pyrimidine compounds may also find particular use in oncology.

Claims (105)

1. A compound of Formula (I):

or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing,

wherein:

Y is H or R 4 ;

each R 1 is independently F, Cl, or CH 3 ;

R 2 is (C 1 -C 3 alkylene)-CF 3 , C 1 -C 6 alkyl, or C 3 -C 6 cycloalkyl;

R 3 is:

wherein:

M 1 is N;

M 2 is absent, CH, CR 3b , or N;

M 3 is CH, CR 3b , N, O, or S;

M 4 is CH, CR 3b , N, O, or S;

R 3a is C 3 -C 6 cycloalkyl, wherein the C 3 -C 6 cycloalkyl is substituted by one or more substituents independently selected from the group consisting of CN and C 1 -C 6 haloalkyl;

each R 3b is independently halogen or CN; and

is an aromatic ring;

each R 4 is independently halogen, CN, (C 1 -C 3 alkylene)-CN, (C 1 -C 3 alkylene)-CF 3 , (C 1 -C 3 alkylene)-C(O)R 17 , (C 1 -C 3 alkylene)-C(O)NR 17 R 18 , (C 1 -C 3 alkylene)-NR 17 R 18 , (C 1 -C 3 alkylene)-NR 17 C(O)R 18 , (C 1 -C 3 alkylene)-NR 17 S(O) 2 R 18 , (C 1 -C 3 alkylene)-OR 17 , (C 1 -C 3 alkylene)-S(O) 2 R 17 , (C 1 -C 3 alkylene)-S(O) 2 NR 17 R 18 , (C 1 -C 3 alkylene)-(C 3 -C 6 cycloalkyl), (C 1 -C 3 alkylene)-(3- to 6-membered heterocyclyl), C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C(O)R 17 , C(O)NR 17 R 18 , C(O)OR 17 , NR 17 R 18 , NR 17 C(O)R 18 , NR 17 S(O) 2 R 18 , OR 17 , OC(O)NR 17 R 18 , ═O, S(O) 2 R 17 , S(O) 2 NR 17 R 18 , Si(C 1 -C 6 alkyl) 3 , C 3 -C 6 cycloalkyl, or 3- to 6-membered heterocyclyl, wherein each R 4 is optionally and independently substituted by one or more substituents independently selected from the group consisting of halogen, C(O)R 19 , NR 19 R 20 , OR 19 , and ═O; or

any two geminal R 4 , together with the carbon atom to which they are attached, independently form a C 3 -C 6 cycloalkyl or 3- to 6-membered heterocyclyl, wherein each C 3 -C 6 cycloalkyl and 3- to 6-membered heterocyclyl is optionally and independently substituted by one or more independently selected R 19 substituents;

each R 17 is independently H, C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, or 3- to 6-membered heterocyclyl, wherein each C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, and 3- to 6-membered heterocyclyl is optionally and independently substituted by one or more substituents independently selected from the group consisting of halogen, OH, and ═O;

each R 18 is independently H, C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, or 3- to 6-membered heterocyclyl, wherein each C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, and 3- to 6-membered heterocyclyl is optionally and independently substituted by one or more substituents independently selected from the group consisting of halogen, OH, and ═O; or

each R 17 and R 18 , together with the atom(s) to which they are attached, independently form a 3- to 6-membered heterocyclyl, wherein each 3- to 6-membered heterocyclyl is optionally and independently substituted by one or more substituents independently selected from the group consisting of halogen, OH, and ═O;

each R 19 is independently H, C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, or 3- to 6-membered heterocyclyl, wherein each C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, and 3- to 6-membered heterocyclyl is optionally and independently substituted by one or more substituents independently selected from the group consisting of halogen, OH, and ═O;

each R 20 is independently H, C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, or 3- to 6-membered heterocyclyl, wherein each C 1 -C 6 alkyl, C 3 -C 6 cycloalkyl, and 3- to 6-membered heterocyclyl is optionally and independently substituted by one or more substituents independently selected from the group consisting of halogen, OH, and ═O;

m is 0, 1, 2, or 3; and

n is 0, 1, 2, 3, or 4;

with the provisos that:

(1) when M 2 is absent and M 4 is O or S, then M 3 is CH, CR 3b , or N; and

(2) when M 2 is absent and M 3 is O or S, then M 4 is CH, CR 3b , or N.

2. The compound of claim 1 , wherein the compound is of Formula (II):

or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing.

3. The compound of claim 1 , wherein the compound is of Formula (III):

or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing.

4. The compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein Y is H.

5. The compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein R 2 is (C 1 -C 3 alkylene)-CF 3 .

6. The compound of claim 5 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein R 2 is CH 2 CF 3 .

7. The compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein R 2 is C 1 -C 6 alkyl.

8. The compound of claim 7 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein R 2 is CH 2 CH 3 or CH(CH 3 ) 2 .

9. The compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein R 2 is C 3 -C 6 cycloalkyl.

10. The compound of claim 9 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein R 2 is cyclopropyl.

11. The compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein R 3 is:

12. The compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein R 3a is C 3 -C 6 cycloalkyl, wherein the C 3 -C 6 cycloalkyl is substituted by one or more independently selected C 1 -C 6 haloalkyl substituents.

13. The compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein R 3a is C 3 -C 6 cycloalkyl, wherein the C 3 -C 6 cycloalkyl is substituted by one or more CN substituents.

14. The compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein R 3a is:

15. The compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein each R 3b is independently halogen.

16. The compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein each R 3b is independently CN.

17. The compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein R 3 is:

18. The compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein:

each R 4 is independently C 1 -C 6 alkyl; or

any two geminal R 4 , together with the carbon atom to which they are attached, independently form a C 3 -C 6 cycloalkyl.

19. The compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein m is 0.

20. The compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein m is 1.

21. The compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein n is 0.

22. The compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein n is 1.

23. The compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein n is 2.

24. The compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing, wherein

is:

25. The compound of claim 1 , wherein the compound is:

or a pharmaceutically acceptable salt thereof.

26. The compound of claim 25 , wherein the compound is:

27. The compound of claim 1 , wherein the compound is:

or a pharmaceutically acceptable salt thereof.

28. The compound of claim 27 , wherein the compound is:

29. The compound of claim 1 , wherein the compound is:

or a pharmaceutically acceptable salt thereof.

30. The compound of claim 29 , wherein the compound is:

31. The compound of claim 1 , wherein the compound is:

or a pharmaceutically acceptable salt thereof.

32. The compound of claim 31 , wherein the compound is:

33. The compound of claim 1 , wherein the compound is:

or a pharmaceutically acceptable salt thereof.

34. The compound of claim 33 , wherein the compound is:

35. The compound of claim 1 , wherein the compound is:

or a pharmaceutically acceptable salt thereof.

36. The compound of claim 35 , wherein the compound is:

37. The compound of claim 1 , wherein the compound is:

or a pharmaceutically acceptable salt thereof.

38. The compound of claim 37 , wherein the compound is:

39. The compound of claim 1 , wherein the compound is:

or a pharmaceutically acceptable salt thereof.

40. The compound of claim 39 , wherein the compound is:

41. The compound of claim 1 , wherein the compound is:

or a pharmaceutically acceptable salt thereof.

42. The compound of claim 41 , wherein the compound is:

43. The compound of claim 1 , wherein the compound is:

or a pharmaceutically acceptable salt thereof.

44. The compound of claim 43 , wherein the compound is:

45. The compound of claim 1 , wherein the compound is:

or a pharmaceutically acceptable salt thereof.

46. The compound of claim 45 , wherein the compound is:

47. A pharmaceutical composition comprising a pharmaceutically acceptable carrier and a compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing.

48. A kit comprising a compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing.

49. A method for inducing premature mitosis in a cell, wherein the method comprises contacting the cell with a compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing.

50. A method for inducing apoptosis in a cell, wherein the method comprises contacting the cell with a compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing.

51. A method for suppressing a G 2 -M deoxyribonucleic acid damage checkpoint in a cell, wherein the method comprises contacting the cell with a compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing.

52. A method for inhibiting Wee1 activity in a cell, wherein the method comprises contacting the cell with a compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing.

53. A method for treating a cancer in an individual in need thereof, wherein the method comprises administering to the individual a therapeutically effective amount of a compound of claim 1 , or a stereoisomer or tautomer thereof, or a pharmaceutically acceptable salt of any of the foregoing.

54. The method of claim 53 , wherein the cancer comprises a mutant tumor protein p53 gene.

55. The method of claim 53 , wherein the method further comprises:

(i) selecting the individual for treatment based on the presence of one or more mutations in the tumor protein p53 gene in the cancer; or

(ii) selecting the individual for treatment based on expression of the mutant tumor protein p53 gene in the cancer.

56. The method of claim 53 , wherein the method further comprises administering to the individual a therapeutically effective amount of an additional therapeutic agent.

57. The method of claim 56 , wherein the additional therapeutic agent is selected from the group consisting of a cancer immunotherapy agent and a chemotherapeutic agent.

58. The method of claim 56 , wherein the additional therapeutic agent is selected from the group consisting of a deoxyribonucleic acid alkylating agent, a deoxyribonucleic acid damage repair pathway inhibitor, a kinase inhibitor, and a platinum-based chemotherapeutic agent.

59. The method of claim 53 , wherein the method further comprises administering to the individual a therapeutically effective amount of a radiation therapy.

60. A compound selected from the group consisting of:

or a pharmaceutically acceptable salt thereof.

Assignments (9)
RELEASE OF SECURITY INTEREST Recorded Jul 6, 2026
From: SAGARD HOLDINGS MANAGER LP, AS ADMINISTRATIVE AGENT
To: NUVATION BIO INC.
Reel/Frame 075179/0564 →
SECURITY INTEREST Recorded Mar 4, 2025
From: NUVATION BIO INC.
To: SAGARD HOLDINGS MANAGER LP, AS ADMINISTRATIVE AGENT
Reel/Frame 070400/0200 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 4, 2022
From: INTEGRAL BIOSCIENCES PVT. LTD.
To: GIRAFPHARMA LLC
Reel/Frame 059493/0479 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 4, 2022
From: SPARCBIO LLC
To: GIRAFPHARMA LLC
Reel/Frame 059493/0504 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 4, 2022
From: GIRAFPHARMA LLC
To: NUVATION BIO OPERATING COMPANY INC. (FORMERLY KNOWN AS NUVATION BIO INC.)
Reel/Frame 059493/0547 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 4, 2022
From: NUVATION BIO OPERATING COMPANY LLC (FORMALLY NUVATION BIO OPERATING COMPANY INC., WHICH WAS FORMALLY KNOWN AS NUVATION BIO INC.)
To: NUVATION BIO IN
Reel/Frame 059493/0581 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 4, 2022
From: PUJALA, BRAHMAM; SONI, SANJEEV; JAISWAL, PUJA; PALVE, DEEPAK; KUMAR, VARUN
To: INTEGRAL BIOSCIENCES PVT. LTD.
Reel/Frame 059593/0285 →
CHANGE OF NAME Recorded Apr 4, 2022
From: NUVATION BIO OPERATING COMPANY INC.
To: NUVATION BIO OPERATING COMPANY LLC
Reel/Frame 059593/0398 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 4, 2022
From: CHAKRAVARTY, SARVAJIT; PHAM, SON MINH; KANKANALA, JAYAKANTH
To: SPARCBIO LLC
Reel/Frame 059493/0455 →
Continuity (2)
Provisional Application 62831665 · Apr 9, 2019
Related Publication 20200325142A1 · Oct 15, 2020