IP Library Granted Patent US 12,331,036
Granted Patent B2
US 12,331,036 · App. 17/946,181 · Granted Jun 17, 2025

Heterocyclic RIP1 kinase inhibitors

Inventors: Simon Shaw (Oakland, CA); Somasekhar Bhamidipati (Foster City, CA); Vanessa Taylor (San Francisco, CA)
Assignee: RIGEL PHARMACEUTICALS, INC.
C07D401/14A61K31/553C07D267/02C07D401/12C07D403/12C07D403/14C07D405/14C07D413/12C07D413/14C07D471/08C07D487/04C07D491/107C07D493/04
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Quick Facts
Patent No.
US 12,331,036
App. No.
17/946,181
Granted
Jun 17, 2025
Kind
B2
Abstract

Disclosed herein are kinase inhibitory compounds, such as a receptor-interacting protein-1 (RIP1) kinase inhibitor compounds, as well as pharmaceutical compositions and combinations comprising such inhibitory compounds. The disclosed compounds, pharmaceutical compositions, and/or combinations may be used to treat or prevent a kinase-associated disease or condition, particularly a RIP1-associated disease or condition.

Claims (63)

1. A method for treating a disease in a subject, comprising administering to the subject (i) a therapeutically effective amount of a compound, or a pharmaceutically acceptable salt, a stereoisomer, an N-oxide, a tautomer, a hydrate, a solvate, an isotope, or a prodrug thereof; or (ii) a therapeutically effective amount of a pharmaceutical composition of a compound; wherein the subject has, or is suspected of having or developing, the disease, wherein the disease is Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, or multiple sclerosis,

wherein the compound is:

wherein:

ring B is heteroaryl;

each R 1 independently is -linker-R 6 group, wherein the linker is R a , provided that R a is not H or D, and R 6 is heterocyclyl, R b , —C(R f ) 3 , or —C(R f )═C(R f ) 2 ;

R 2 is R a ;

R 3 is R a ;

R 4 is C 1-6 alkyl;

if present, each R 4 independently is Re;

L is a heteroatom or R a , provided that R a is not H or D;

X is CH 2 or O;

Z is heteroaryl;

m is 1, 2, 3, or 4;

n is 0, 1 or 2;

R a is independently for each occurrence H or D, except for embodiments where L is R a , or is C 1-10 aliphatic, C 1-10 haloaliphatic, C 5-10 aromatic, C 3-6 heterocyclic, or C 3-10 spiroheterocyclic;

R b is independently for each occurrence —OH, —SH, —OR c , —SR c , —NR d R d , —Si(R a ) 3 , —C(O)OH, —C(O)OR c , —C(O)NR d R d , —OC(O)NR d R d , —OC(O)C 1-10 alkyl substituted with one or two NR d R d , carboxyl, or a combination thereof, and optionally further substituted with an aromatic moiety, —SH, —O-acyl, or —C(O)NH 2 ;

R c is independently for each occurrence C 1-10 alkyl, which can be substituted with 1, 2 or 3 R e , C 2-10 alkenyl, which can be substituted with 1, 2 or 3 R e , C 2-10 alkynyl, which can be substituted with 1, 2 or 3 R e , C 3-6 cycloalkyl, which can be substituted with 1, 2 or 3 R e , or C 5-10 aromatic, which can be substituted with 1, 2 or 3 R e ;

R d is independently for each occurrence H; C 1-6 alkyl, which can be substituted with 1, 2 or 3 R e or a C 3-9 heterocyclyl; C 3-6 cycloalkyl, which can be substituted with 1, 2 or 3 R e ; C 3-6 heterocyclic, which can be substituted with 1, 2 or 3 R e ; C 5-10 aryl, which can be substituted with 1, 2 or 3 R b ; C 5-10 heteroaryl, which can be substituted with 1, 2 or 3 R e ; or two R d groups together with the nitrogen bound thereto provide a C 3-9 heterocyclic, which can be substituted with one or more R e ), or a C 5-10 heteroaryl, which can be substituted with one or more R e ;

R e is independently for each occurrence halogen, C 1-6 alkyl, C 2-10 alkenyl, C 2-10 alkynyl, C 1-6 haloalkyl, C 3-6 cycloalkyl, C 5-10 heteroaryl, or —OR a ; and

R f is independently for each occurrence-alkyl-phosphate, R a , R b , or R e , or two R f groups together with the carbon atom bound thereto provide a C 2-6 alkenyl group, a C 3-6 cycloalkyl group, which can be substituted with one or more R e , or a C 3-10 heterocyclic, which can be substituted with one or more R e or acyl.

2. The method of claim 1 , wherein the disease is multiple sclerosis.

3. The method of claim 1 , wherein the disease is amyotrophic lateral sclerosis.

4. The method of claim 1 , wherein each R 1 independently is:

5. The method of claim 1 , wherein each R 1 independently is:

6. The method of claim 1 , wherein each R 1 independently is:

7. The method of claim 1 , wherein the compound is

I-1: (S)-4-((6-fluoropyridin-2-yl) methyl)-N-(7-(3-hydroxy-3-methylbut-1-yn-1-yl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-1H-pyrazole-1-carboxamide;

I-2: (S)—N-(7-(3-hydroxy-3-methylbut-1-yn-1-yl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-4-((6-methylpyridin-2-yl) methyl)-1H-pyrazole-1-carboxamide;

I-3: (S)—N-(7-((3-hydroxyoxetan-3-yl) ethynyl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-4-((6-methylpyridin-3-yl) oxy) picolinamide;

I-4: (S)—N-(7-(3-hydroxy-3-methylbut-1-yn-1-yl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-4-((6-methylpyridin-3-yl) oxy) picolinamide;

I-5: (S)-4-((6-fluoropyridin-3-yl) oxy)-N-(7-((3-hydroxyoxetan-3-yl) ethynyl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl) picolinamide;

I-6: (S)-4-((6-fluoropyridin-3-yl) oxy)-N-(7-(3-hydroxy-3-methylbut-1-yn-1-yl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl) picolinamide;

I-7: (S)-4-((6-fluoropyridin-2-yl) methyl)-N-(7-((3-hydroxyoxetan-3-yl) ethynyl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl) picolinamide;

I-8: (S)—N-(7-(3-hydroxy-3-methylbut-1-yn-1-yl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-4-(pyridin-2-ylmethyl)-1H-pyrazole-1-carboxamide;

I-9: (S)—N-(7-(3-hydroxy-3-methylbut-1-yn-1-yl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-4-((6-(trifluoromethyl) pyridin-2-yl) methyl)-1H-pyrazole-1-carboxamide;

I-10: (S)—N-(7-((3-hydroxyoxetan-3-yl) ethynyl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-4-((6-hydroxypyridin-2-yl) methyl) picolinamide;

I-11: (S)—N-(7-(3-hydroxy-3-methylbut-1-yn-1-yl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-4-((6-methylpyridin-2-yl) methyl) picolinamide;

I-12: (S)—N-(7-((3-hydroxyoxetan-3-yl) ethynyl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-4-((6-methylpyridin-2-yl) methyl) picolinamide;

I-13: (S)-4-((6-fluoropyridin-2-yl) methyl)-N-(7-(3-hydroxy-3-methylbut-1-yn-1-yl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl) picolinamide;

I-14: (S)—N-(7-(3-hydroxy-3-methylbut-1-yn-1-yl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-4-(pyridin-3-ylmethyl)-1H-pyrazole-1-carboxamide;

I-15: (S)—N-(7-(3-hydroxy-3-methylbut-1-yn-1-yl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-4-((6-methylpyridin-3-yl) methyl)-1H-pyrazole-1-carboxamide;

I-16: (S)-4-((6-fluoropyridin-3-yl) methyl)-N-(7-(3-hydroxy-3-methylbut-1-yn-1-yl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-1H-pyrazole-1-carboxamide;

I-17: (S)—N-(7-(3-hydroxy-3-methylbut-1-yn-1-yl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-4-(pyridazin-3-ylmethyl)-1H-pyrazole-1-carboxamide;

I-26: (S)-4-((2-fluoropyridin-3-yl) methyl)-N-(7-((3-hydroxyoxetan-3-yl) ethynyl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl) picolinamide;

I-27: (S)-4-((2-fluoropyridin-3-yl) methyl)-N-(7-(3-hydroxy-3-methylbut-1-yn-1-yl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl) picolinamide;

I-29: (S)—N-(7-(3-hydroxy-3-methylbut-1-yn-1-yl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-4-(pyridin-4-ylmethyl)-1H-pyrazole-1-carboxamide;

I-31: (S)—N-(7-(3-hydroxy-3-methylbut-1-yn-1-yl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-4-(pyrimidin-2-ylmethyl)-1H-pyrazole-1-carboxamide;

I-32: (S)-4-((6-fluoropyridin-2-yl) methyl)-N-(7-((3-hydroxyoxetan-3-yl) ethynyl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-1H-pyrazole-1-carboxamide;

I-33: (S)-4-((6-fluoropyridin-2-yl) methyl)-N-(7-((4-hydroxytetrahydro-2H-pyran-4-yl) ethynyl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-1H-pyrazole-1-carboxamide;

I-34: (S)-4-((6-fluoropyridin-2-yl) methyl)-N-(5-methyl-4-oxo-7-((tetrahydro-2H-pyran-4-yl) ethynyl)-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-1H-pyrazole-1-carboxamide;

I-36: (S)-4-((6-fluoropyridin-2-yl) methyl)-N-(8-((3-hydroxyoxetan-3-yl) ethynyl)-1-methyl-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b]azepin-3-yl)-1H-pyrazole-1-carboxamide;

I-37: (S)-4-((6-fluoropyridin-2-yl) methyl)-N-(7-(4-hydroxy-3,3-dimethylbut-1-yn-1-yl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-1H-pyrazole-1-carboxamide;

I-38: (S)-4-((6-fluoropyridin-2-yl) methyl)-N-(8-(3-hydroxy-3-methylbut-1-yn-1-yl)-1-methyl-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b]azepin-3-yl)-1H-pyrazole-1-carboxamide;

I-39: (S)-4-((6-fluoropyridin-2-yl) methyl)-N-(8-(4-hydroxy-3,3-dimethylbut-1-yn-1-yl)-1-methyl-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b]azepin-3-yl)-1H-pyrazole-1-carboxamide;

I-40: (S)-4-((6-fluoropyridin-2-yl) methyl)-N-(8-((4-hydroxytetrahydro-2H-pyran-4-yl) ethynyl)-1-methyl-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b]azepin-3-yl)-1H-pyrazole-1-carboxamide;

I-41: (S)-4-((6-fluoropyridin-2-yl) methyl)-N-(8-((1-hydroxycyclobutyl) ethynyl)-1-methyl-2-oxo-2,3,4,5-tetrahydro-1H-benzo[b]azepin-3-yl)-1H-pyrazole-1-carboxamide;

I-43: (S)-4-((2-fluoropyridin-3-yl) methyl)-N-(7-(3-hydroxy-3-methylbut-1-yn-1-yl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-1H-pyrazole-1-carboxamide;

I-44: (S)-4-((2-fluoropyridin-3-yl) methyl)-N-(7-((4-hydroxytetrahydro-2H-pyran-4-yl) ethynyl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-1H-pyrazole-1-carboxamide;

I-45: (S)-4-((2-fluoropyridin-3-yl) methyl)-N-(5-methyl-4-oxo-7-((tetrahydro-2H-pyran-4-yl) ethynyl)-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-1H-pyrazole-1-carboxamide;

I-46: (S)-4-((2-fluoropyridin-3-yl) methyl)-N-(7-(4-hydroxy-3,3-dimethylbut-1-yn-1-yl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-1H-pyrazole-1-carboxamide;

I-47: (S)-4-((2-fluoropyridin-3-yl) methyl)-N-(7-((3-hydroxyoxetan-3-yl) ethynyl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-1H-pyrazole-1-carboxamide;

I-48: (S)-4-((2-fluoropyridin-3-yl) methyl)-N-(7-((1-hydroxycyclobutyl) ethynyl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-1H-pyrazole-1-carboxamide; or

I-50: (S)-4-((2,6-difluoropyridin-3-yl) methyl)-N-(7-(3-hydroxy-3-methylbut-1-yn-1-yl)-5-methyl-4-oxo-2,3,4,5-tetrahydrobenzo[b][1,4]oxazepin-3-yl)-1H-pyrazole-1-carboxamide.

Assignments (2)
SECURITY INTEREST Recorded May 8, 2026
From: RIGEL PHARMACEUTICALS, INC.
To: MIDCAP FUNDING IV TRUST
Reel/Frame 075576/0880 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 16, 2022
From: SHAW, SIMON; BHAMIDIPATI, SOMASEKHAR; TAYLOR, VANESSA
To: RIGEL PHARMACEUTICALS, INC.
Reel/Frame 061116/0758 →
Continuity (8)
Continuation 17013034 · Sep 4, 2020
Provisional Application 63004290 · Apr 2, 2020
Provisional Application 63004301 · Apr 2, 2020
Provisional Application 63004319 · Apr 2, 2020
Provisional Application 63001016 · Mar 27, 2020
Provisional Application 62932404 · Nov 7, 2019
Provisional Application 62897223 · Sep 6, 2019
Related Publication 20230057341A1 · Feb 23, 2023
References Cited (35)
US 8658689B2 · Cuny et al. · 2014 [cited by applicant]
US 9556152B2 · Harris et al. · 2017 [cited by applicant]
US 9624202B2 · Jeong · 2017 [cited by applicant]
US 9725452B2 · Yuan et al. · 2017 [cited by applicant]
US 9815850B2 · Estrada et al. · 2017 [cited by applicant]
US 9896458B2 · Estrada et al. · 2018 [cited by applicant]
US 10815206B2 · Masuda et al. · 2020 [cited by applicant]
US 10975064B2 · Taylor et al. · 2021 [cited by applicant]
US 10988459B2 · Patel et al. · 2021 [cited by applicant]
US 11407736B2 · Chen et al. · 2022 [cited by applicant]
US 20210069208A1 · Yu et al. · 2021 [cited by applicant]
US 20210070735A1 · Bhamidipati et al. · 2021 [cited by applicant]
US 20210070744A1 · Chen et al. · 2021 [cited by applicant]
US 20210139494A1 · Chen et al. · 2021 [cited by applicant]
US 20210292340A1 · Ma et al. · 2021 [cited by applicant]
US 20210317135A1 · Darwish et al. · 2021 [cited by applicant]
US 20210371430A1 · Zhou et al. · 2021 [cited by applicant]
US 20220009936A1 · Bhamidipati et al. · 2022 [cited by applicant]
WO WO2016027253 · 2016 [cited by examiner]
WO 2016128936 · 2016 [cited by applicant]
WO 2017064217 · 2017 [cited by applicant]
WO 2017069279 · 2017 [cited by applicant]
WO 2017109724 · 2017 [cited by applicant]
WO 2018073193 · 2018 [cited by applicant]
WO 2018109097 · 2018 [cited by applicant]
WO 2018154520 · 2018 [cited by applicant]
WO 2020001420 · 2020 [cited by applicant]
WO 2020088194 · 2020 [cited by applicant]
Harris et al., “Identification of a RIP1 Kinase Inhibitor Clinical Candidate (GSK3145095) for the Treatment of Pancreatic Cancer,” ACS Medicinal Chemistry Letters, pp. 857-862, vol. 10, No. 6, (2019). [cited by applicant]
Harris et al., “Discovery and Lead-Optimization of 4,5-Dihydropyrazoles as Mono-Kinase Selective, Orally Bioavailable and Efficacious Inhibitors of Receptor Interacting Protein 1 (RIP1) Kinase,” Journal of Medicinal Che… [cited by applicant]
Harris et al., “DNA-Encoded Library Screening Identifies Benzo[b][1,4]oxazepin-4-ones as Highly Potent and Monoselective Receptor Interacting Protein 1 Kinase Inhibitors” Journal of Medicinal Chemistry 59(5): 2163-2178,… [cited by applicant]
Harris et al., “Discovery of a First-in-Class Receptor Interacting Protein 1 (RIP1) Kinase Specific Clinical Candidate (GSK2982772) for the Treatment of Inflammatory Diseases” Journal of Medicinal Chemistry 60:1247-1261… [cited by applicant]
Ishii et al., “CETSA quantitatively verifies in vivo target engagement of novel RIPK1 inhibitors in various biospecimens” Scientific Reports 7(1): 13000, pp. 1-14, 2017. [cited by applicant]
Najjar et al., “Structure guided design of potent and selective ponatinib-based hybrid inhibitors for RIPK1” Cell Reports 12(11): 1850-1860, Mar. 24, 2015. [cited by applicant]
Yoshikawa et al., “Discovery of 7-Oxo-2,4,5,7-tetrahydro-6 H-pyrazolo [3,4-C ] pyridine Derivatives as Potent, Orally Available, and Brain-Penetrating Receptor Interacting Protein 1 (RIP1) Kinase Inhibitors: Analysis of… [cited by applicant]