IP Library Granted Patent US 12,213,969
Granted Patent B2
US 12,213,969 · App. 18/215,887 · Granted Feb 4, 2025

2-spiro-5- and 6-hydroxamic acid indanes as HDAC inhibitors

Inventors: Xiaozhang Zheng (Lexington, MA); Pui Yee Ng (Lexington, MA); Mary-Margaret Zablocki (Revere, MA)
Assignee: VALO HEALTH, INC.
A61K31/438C07D209/54C07D221/20C07D401/04C07D401/06A61K31/407A61P25/14A61P25/28A61P35/00
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Quick Facts
Patent No.
US 12,213,969
App. No.
18/215,887
Granted
Feb 4, 2025
Kind
B2
Abstract

The present invention is directed to inhibitors of histone deacetylases (HDACs) such as HDAC6, and their use in the treatment of diseases such as cell proliferative diseases (e.g., cancer), neurological (e.g., neurodegenerative disease or neurodevelopmental disease), inflammatory or autoimmune disease, infection, metabolic disease, hematologic disease, or cardiovascular disease.

Claims (36)

1. A compound of the Formula I:

or a pharmaceutically acceptable salt thereof, wherein:

X 1 , X 2 , X 3 , X 4 , X 5 , and X 6 are each independently, at each occurrence, —CR 1 R 2 —, —NR 3 —, —O—, —C(O)—, —S(O) 2 —, —S(O)—, or —S—;

Y 1 , Y 2 , Y 3 and Y 4 are each independently, at each occurrence, N or CR 1 , wherein —C(O)NHOH is attached at Y 2 or Y 3 , and Y 2 or Y 3 is a carbon atom when attached to —C(O)NHOH;

L is a bond, —(CR 1 R 2 ) p —, —C(O)NR 3 —, —S(O) 2 —, —S(O) 2 NR 3 —, —S(O)—, —S(O)NR 3 —, —C(O)(CR 1 R 2 ) p O—, or —C(O)(CR 1 R 2 ) p —;

R is —H, —C 1 -C 6 alkyl, —C 2 -C 6 alkenyl, —C 4 -C 8 cycloalkenyl, —C 2 -C 6 alkynyl, —C 3 -C 8 cycloalkyl, —C 5 -C 12 spirocycloalkyl, heterocyclyl, spiroheterocyclyl, aryl, or heteroaryl containing 1-5 heteroatoms selected from the group consisting of N, S, P, or O, wherein each alkyl, alkenyl, cycloalkenyl, alkynyl, cycloalkyl, spirocycloalkyl, heterocyclyl, spiroheterocyclyl, aryl, or heteroaryl is optionally substituted with one or more —OH, halogen, oxo, —NO 2 , —CN, —R 1 , —R 2 , —SR 3 , —OR 3 , —NHR 3 , —NR 3 R 4 , —S(O) 2 NR 3 R 4 , —S(O) 2 R 1 , —C(O)R 1 , —CO 2 R 1 , —NR 3 S(O) 2 R 1 , —S(O)R 1 , —S(O)NR 3 R 4 , —NR 3 S(O)R 1 , heterocyclyl, aryl, or heteroaryl;

R 1 and R 2 are independently, at each occurrence, —H, —R 3 , —R 4 , —C 1 -C 6 alkyl, —C 2 -C 6 alkenyl, —C 4 -C 8 cycloalkenyl, —C 2 -C 6 alkynyl, —C 3 -C 8 cycloalkyl, heterocyclyl, aryl, heteroaryl containing 1-5 heteroatoms selected from the group consisting of N, S, P and O, —OH, halogen, —NO 2 , —CN, —NH(C 1 -C 6 alkyl), —N(C 1 -C 6 alkyl) 2 , —S(O) 2 N(C 1 -C 6 alkyl) 2 , —N(C 1 -C 6 alkyl)S(O) 2 R 5 , —S(O) 2 (C 1 -C 6 alkyl), —(C 1 -C 6 alkyl)S(O) 2 R 5 , —C(O)C 1 -C 6 alkyl, —CO 2 C 1 -C 6 alkyl, —N(C 1 -C 6 alkyl)S(O) 2 (C 1 -C 6 alkyl), or —(CHR 5 ) p NR 3 R 4 , wherein each alkyl, alkenyl, cycloalkenyl, alkynyl, cycloalkyl, heterocyclyl, aryl, or heteroaryl is optionally substituted with one or more —OH, halogen, —NO 2 , oxo, —CN, —R 5 , —OR 3 , —NHR 3 , —NR 3 R 4 , —S(O) 2 N(R 3 ) 2 —, —S(O) 2 R 5 , —C(O)R 5 , —CO 2 R 5 , —NR 3 S(O) 2 R 5 , —S(O)R 5 , —S(O)NR 3 R 4 , —NR 3 S(O)R 5 , heterocyclyl, aryl, or heteroaryl;

or R 1 and R 2 , when on the same atom, can combine with the carbon atom to which they are both attached to form a cycloalkyl, heterocyclyl, spirocycloalkyl, spiroheterocyclyl, or spirocycloalkenyl;

or R 1 and R 2 , when on adjacent or non-adjacent atoms, can combine to form a heterocyclyl, cycloalkyl, aryl, heteroaryl containing 1-5 heteroatoms selected from the group consisting of N, S, P and O, or cycloalkenyl;

R 3 and R 4 are independently, at each occurrence, —H, —C 1 -C 6 alkyl, —C 2 -C 6 alkenyl, —C 4 -C 8 cycloalkenyl, —C 2 -C 6 alkynyl, —C 3 -C 8 cycloalkyl, heterocyclyl, aryl, heteroaryl containing 1-5 heteroatoms selected from N, S, P, and O, —S(O) 2 N(C 1 -C 6 alkyl) 2 , —S(O) 2 (C 1 -C 6 alkyl), —(C 1 -C 6 alkyl)S(O) 2 R 5 , —C(O)C 1 -C 6 alkyl, —CO 2 C 1 -C 6 alkyl, or —(CHR 5 ) p N(C 1 -C 6 alkyl) 2 , wherein each alkyl, alkenyl, cycloalkenyl, alkynyl, cycloalkyl, heterocyclyl, aryl, and heteroaryl is optionally substituted with one or more substituents selected from —OH, halogen, —NO 2 , oxo, —CN, —R 5 , —O(C 1 -C 6 )alkyl, —NH(C 1 -C 6 alkyl), —N(C 1 -C 6 alkyl) 2 , —S(O) 2 N(C 1 -C 6 alkyl) 2 , —S(O) 2 NH(C 1 -C 6 alkyl), —C(O)C 1 -C 6 alkyl, —CO 2 C 1 -C 6 alkyl, —N(C 1 -C 6 alkyl)S(O) 2 (C 1 -C 6 alkyl), —S(O)R 5 , —S(O)N(C 1 -C 6 alkyl) 2 , —N(C 1 -C 6 alkyl)S(O)R 5 , heterocyclyl, aryl, or heteroaryl;

R 5 is independently, at each occurrence, —H, —C 1 -C 6 alkyl, —C 2 -C 6 alkenyl, —C 4 -C 8 cycloalkenyl, —C 2 -C 6 alkynyl, —C 3 -C 8 cycloalkyl, heterocyclyl, aryl, heteroaryl containing 1-5 heteroatoms selected from N, S, P and O, —OH, halogen, —NO 2 , —CN, —NHC 1 -C 6 (alkyl), —N(C 1 -C 6 alkyl) 2 , —S(O) 2 NH(C 1 -C 6 alkyl), —S(O) 2 N(C 1 -C 6 alkyl) 2 , —S(O) 2 (C 1 -C 6 alkyl), —C(O)C 1 -C 6 alkyl, —CO 2 C 1 -C 6 alkyl, —N(C 1 -C 6 alkyl)S(O) 2 (C 1 -C 6 alkyl), —S(O)(C 1 -C 6 alkyl), —S(O)N(C 1 -C 6 alkyl) 2 , —N(C 1 -C 6 alkyl)S(O)(C 1 -C 6 alkyl) or —(CH 2 ) p N(C 1 -C 6 alkyl) 2 ;

p is 0, 1, 2, 3, 4, 5, or 6;

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

m is 0, 1, or 2; and

wherein the sum m+n is 4.

2. The compound of claim 1 , wherein n is 2.

3. The compound of claim 1 , wherein m is 1.

4. The compound of claim 1 , wherein m is 0.

5. The compound of claim 1 , wherein X 1 is —CH 2 — and X 2 is —CH 2 —.

6. The compound of claim 1 , wherein X 5 is C(O).

7. The compound of claim 5 , wherein Y 1 and Y 4 are each CR 1 , wherein —C(O)NHOH is attached at Y 2 or Y 3 , and Y 2 or Y 3 is a carbon atom when attached to —C(O)NHOH.

8. The compound of claim 7 , wherein L is a bond, —(CR 1 R 2 ) p —, or —C(O)(CR 1 R 2 ) p —.

9. The compound of claim 8 , wherein p is 0 or 1.

10. The compound of claim 9 , wherein R is —H or an optionally substituted group selected from —C 1 -C 6 alkyl, aryl, and heteroaryl.

11. The compound of claim 10 , wherein R is an optionally substituted group selected from aryl or heteroaryl.

12. The compound of claim 1 , wherein the compound is of the Formula IA:

or a pharmaceutically acceptable salt thereof.

13. The compound of claim 7 , wherein n is 2.

14. The compound of claim 7 , wherein m is 1.

15. The compound of claim 7 , wherein m is 0.

16. The compound of claim 1 , wherein the compound is of the Formula IB:

or a pharmaceutically acceptable salt thereof.

17. The compound of claim 16 , wherein n is 2.

18. The compound of claim 16 , wherein m is 1.

19. The compound of claim 16 , wherein m is 0.

20. A pharmaceutical composition comprising a compound of claim 1 and a pharmaceutically acceptable carrier.

Assignments (4)
MERGER Recorded Aug 3, 2023
From: VALO EARLY DISCOVERY, INC.
To: VALO HEALTH, INC.
Reel/Frame 064485/0102 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 3, 2023
From: FORMA THERAPEUTICS, INC.
To: INTEGRAL EARLY DISCOVERY, INC.
Reel/Frame 064490/0279 →
CHANGE OF NAME Recorded Aug 3, 2023
From: INTEGRAL EARLY DISCOVERY, INC.
To: VALO EARLY DISCOVERY, INC.
Reel/Frame 064490/0522 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 27, 2023
From: ZHENG, XIAOZHANG; NG, PUI YEE; ZABLOCKI, MARY-MARGARET
To: FORMA THERAPEUTICS, INC.
Reel/Frame 064406/0719 →
Continuity (5)
Division 17130704 · Dec 22, 2020
Division 16719332 · Dec 18, 2019
Division 16309980
Provisional Application 62351399 · Jun 17, 2016
Related Publication 20230414585A1 · Dec 28, 2023
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