IP Library › Granted Patent US 12,729,208
Granted Patent B2
US 12,729,208 · App. 17/997,461 · Granted Sep 8, 2026

Inhibitor of apoptosis (IAP) protein antagonists

Inventors: Nicholas David Peter Cosford (San Diego, CA); Dominik Heimann (Hamm, DE); Peter Teriete (San Diego, CA); Sumit Kumar Chanda (La Jolla, CA); Lars Pache (San Diego, CA); Laurent Jean Stephane De Backer (San Diego, CA); Nicole Bata (San Diego, CA); Mitchell D. Vamos (Batavia, OH)
Assignee: SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE
C07D498/04A61P35/00C07D487/04C07D487/22C07D513/04
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Quick Facts
Patent No.
US 12,729,208
App. No.
17/997,461
Granted
Sep 8, 2026
Kind
B2
Abstract

Provided herein are compounds that modulate the activity of melanoma inhibitor of apoptosis (ML-IAP) protein, compositions comprising the compounds, and methods of using the compounds and compositions comprising the compounds.

Claims (36)

1 . A compound or pharmaceutically acceptable salt thereof, having the structure of Formula (A-III):

wherein,

X is NR A , O, S, S(O), or S(O) 2 ;

R A is hydrogen;

R 2a , R 2b , R 3a , and R 3b are each hydrogen;

R 6a is —U;

R 6b is —U;

—U is C 1 -C 6 alkyl;

or R 6a and R 6b together with the carbon atom to which they are attached form a saturated or partially saturated 3- to 7-membered cycloalkyl or a saturated or partially saturated 3- to 7-membered heterocycloalkyl;

R 7a is hydrogen;

R 7b is hydrogen;

R 8 is Z, CH(Z) 2 , CH 2 CH(Z) 2 , CH(C 1 -C 6 alkyl)Z, or C(O)Z; and

Z is C 3 -C 10 cycloalkyl, 3- to 10-membered heterocycloalkyl, C 6 -C 10 aryl, or 5- to 10-membered heteroaryl; wherein each Z is optionally substituted with 1, 2, or 3 C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, C 1 -C 4 alkoxy, C 1 -C 4 haloalkoxy, or 5- to 10-membered heteroaryl provided that when R 6a and Rob are both CH 3 or when R 6a and R 6b together with the carbon atom to which they are attached form an unsubstituted cyclopentyl or unsubstituted cyclopentenyl, then R 8 is not

2 . The compound of claim 1 , wherein X is O.

3 . The compound of claim 1 , wherein X is S or S(O) 2 .

4 . The compound of claim 1 , wherein X is S.

5 . The compound of claim 1 , wherein X is S(O) 2 .

6 . The compound of claim 1 , wherein X is NR A .

7 . The compound of claim 1 , having the structure of Formula (A-IV-a), (A-IV-b), or (A-IV-c):

8 . The compound of claim 1 , wherein R 6a and R 6b together with the carbon atom to which they are attached form a saturated or partially saturated 3- to 7-membered cycloalkyl ring.

9 . The compound of claim 8 , wherein R 6a and R 6b together with the carbon atom to which they are attached form a saturated or partially saturated 3- to 5-membered cycloalkyl ring.

10 . The compound of claim 1 , wherein R 6b is methyl, ethyl, 2-propenyl, or isopropyl.

11 . The compound of claim 1 , wherein R 6b is methyl.

12 . The compound of claim 1 , wherein R 6a and Rob are methyl.

13 . The compound of claim 1 , wherein R 8 is Z or CH(Z) 2 .

14 . The compound of claim 1 , wherein R 8 is Z.

15 . The compound of claim 1 , wherein Z is C 3 -C 10 cycloalkyl or 3- to 10-membered heterocycloalkyl.

16 . The compound of claim 1 , wherein Z is C 3 -C 10 cycloalkyl.

17 . The compound of claim 1 , wherein R 8 is:

18 . A compound or pharmaceutically acceptable salt thereof, having the structure:

19 . A pharmaceutical composition comprising a compound of claim 1 , or pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier.

20 . A method of treating cancer in an individual in need thereof comprising administering a therapeutically effective amount of a compound of claim 1 , or pharmaceutically acceptable salt thereof, to the individual.

21 . The compound of claim 18 , having the structure:

or pharmaceutically acceptable salt thereof.

22 . The compound of claim 18 , having the structure:

or pharmaceutically acceptable salt thereof.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 24, 2025
From: VAMOS, MITCHELL D.
To: SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE
Reel/Frame 071829/0237 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 18, 2023
From: COSFORD, NICHOLAS DAVID PETER; HEIMANN, DOMINIK; TERIETE, PETER; CHANDA, SUMIT KUMAR; PACHE, LARS; DE BACKER, LAURENT JEAN STEPHANE; BATA, NICOLE
To: SANFORD BURNHAM PREBYS MEDICAL DISCOVERY INSTITUTE
Reel/Frame 064304/0798 →
Continuity (2)
Provisional Application 63018464 · Apr 30, 2020
Related Publication 20230295181A1 · Sep 21, 2023
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