Pyrazolopyrimidine compounds and uses thereof

Patent metadata

Field	Value
Publication number	US-11111247-B2
Application number	US-201916580766-A
Country	US
Kind code	B2
Filing date	Sep 24, 2019
Priority date	Sep 25, 2018
Publication date	Sep 7, 2021
Grant date	Sep 7, 2021

Abstract

Disclosed are compounds of Formula (I), methods of using the compounds for inhibiting ALK2 activity and/or FGFR activity, and pharmaceutical compositions comprising such compounds. The compounds are useful in treating, preventing or ameliorating diseases or disorders associated with ALK2 activity and/or FGFR activity, such as cancer.

First claim

What is claimed is:

1. A compound of Formula I:

or a pharmaceutically acceptable salt thereof, wherein:
R 1 is selected from Cy 1 , C 2-6 alkenyl, C 2-6 alkynyl, C 1-6 haloalkyl, halo, CN, NO 2 , OR a , SR a , C(O)R b , C(O)NR c R d , C(O)OR a , OC(O)R b , OC(O)NR c R d , NR c R d , NR c C(O)R b , NR c C(O)OR a , NR c C(O)NR c R d , C(═NR e )R b , C(═NOR a )R b , C(═NR e )NR c R d , NR c C(═NR e )NR c R d , NR c S(O)R b , NR c S(O) 2 R b , NR c S(O) 2 NR c R d , S(O)R b , S(O)NR c R d , S(O) 2 R b , and S(O) 2 NR c R d ; wherein said C 2-6 alkenyl and C 2-6 alkynyl are each substituted with 1, 2, 3, or 4 substituents independently selected from R 10 ;
Cy 1 is selected from C 3-8 cycloalkyl, 4-12 membered heterocycloalkyl, C 6-10 aryl and 5-10 membered heteroaryl; wherein the 4-12 membered heterocycloalkyl and 5-10 membered heteroaryl each has at least one ring-forming carbon atom and 1, 2, 3, or 4 ring-forming heteroatoms independently selected from N, O, and S; wherein the N and S are optionally oxidized; wherein a ring-forming carbon atom of 5-10 membered heteroaryl and 4-12 membered heterocycloalkyl is optionally substituted by oxo to form a carbonyl group; and wherein the C 3-8 cycloalkyl, 4-12 membered heterocycloalkyl, C 6-10 aryl and 5-10 membered heteroaryl are each optionally substituted with 1, 2, 3 or 4 substituents independently selected from R 10 ;
Cy is 4-12 membered heterocycloalkyl; wherein the 4-12 membered heterocycloalkyl has at least one ring-forming carbon atom and 1, 2, 3, or 4 ring-forming heteroatoms independently selected from N, O, and S; wherein the N and S are optionally oxidized; wherein a ring-forming carbon atom of 4-12 membered heterocycloalkyl is optionally substituted by oxo to form a carbonyl group; wherein when the 4-12 membered heterocycloalkyl of Cy has a fused aromatic ring, the 4-12 membered heterocycloalkyl is directly attached to the pyrazolopyrimidine core structure through a ring-forming atom of the saturated or partially saturated ring; and wherein the 4-12 membered heterocycloalkyl is optionally substituted with 1, 2, 3, 4 or 5 substituents independently selected from R 20 ;
R 2 is selected from H, D, C 1-4 alkyl, C 1-4 haloalkyl, C 1-4 alkoxy and C 1-4 haloalkoxy;
each R 10 is independently selected from C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 1-6 haloalkyl, C 3-10 cycloalkyl, 4-10 membered heterocycloalkyl, C 6-10 aryl, 5-10 membered heteroaryl, C 3-10 cycloalkyl-C 1-3 alkylene, 4-10 membered heterocycloalkyl-C 1-3 alkylene, C 6-10 aryl-C 1-3 alkylene, 5-10 membered heteroaryl-C 1-3 alkylene, halo, D, CN, NO 2 , OR a1 , SR a1 , C(O)R b1 , C(O)NR c1 R d1 , C(O)OR a1 , OC(O)R b1 , OC(O)NR c1 R d1 , NR c1 R d1 , NR c1 C(O)R b1 , NR c1 C(O)OR a1 NR c1 C(O)NR c1 R d1 , C(═NR e1 )R b1 , C(═NOR a1 )R b1 , C(═NR e1 )NR c1 R d1 , NR c1 C(═NR e1 )NR c1 R d1 , NR c1 S(O)R b1 , NR c1 S(O) 2 R b1 , NR c1 S(O) 2 NR c1 R d1 , S(O)R b1 , S(O)NR c1 R d1 , S(O) 2 R b1 , and S(O) 2 NR c1 R d1 ; wherein said C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 3-10 cycloalkyl, 4-10 membered heterocycloalkyl, C 6-10 aryl, 5-10 membered heteroaryl, C 3-10 cycloalkyl-C 1-3 alkylene, 4-10 membered heterocycloalkyl-C 1-3 alkylene, C 6-10 aryl-C 1-3 alkylene and 5-10 membered heteroaryl-C 1-3 alkylene are each optionally substituted with 1, 2, 3, or 4 substituents independently selected from R 11 ;
or two R 10 substituents taken together with the carbon atom to which they are attached form a spiro 4-7-membered heterocycloalkyl ring, or a spiro C 3-6 cycloalkyl ring; wherein each spiro 4-7-membered heterocycloalkyl ring has at least one ring-forming carbon atom and 1, 2 or 3, ring-forming heteroatoms independently selected from N, O, and S; wherein a ring-forming carbon atom of each spiro 4-7-membered heterocycloalkyl ring is optionally substituted by oxo to form a carbonyl group; and wherein the spiro 4-7-membered heterocycloalkyl ring and spiro C 3-6 cycloalkyl ring are each optionally substituted with 1, 2, 3 or 4 substituents independently selected from R 11 ;
each R 11 is independently selected from C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 1-6 haloalkyl, C 3-10 cycloalkyl, 4-10 membered heterocycloalkyl, C 6-10 aryl, 5-10 membered heteroaryl, C 3-10 cycloalkyl-C 1-3 alkylene, 4-10 membered heterocycloalkyl-C 1-3 alkylene, C 6-10 aryl-C 1-3 alkylene, 5-10 membered heteroaryl-C 1-3 alkylene, halo, D, CN, OR a3 , SR a3 , C(O)R b3 , C(O)NR c3 R d3 , C(O)OR a3 , NR c3 R d3 NR c3 C(O)R b3 , NR c3 C(O)OR a3 , NR c3 S(O)R b3 , NR c3 S(O) 2 R b3 , NR c3 S(O) 2 NR c3 R d3 S(O)R b3 , S(O)NR c3 R d3 , S(O) 2 R b3 , and S(O) 2 NR c3 R d3 ; wherein said C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 3-10 cycloalkyl, 4-10 membered heterocycloalkyl, C 6-10 aryl, 5-10 membered heteroaryl, C 3-10 cycloalkyl-C 1-3 alkylene, 4-10 membered heterocycloalkyl-C 1-3 alkylene, C 6-10 aryl-C 1-3 alkylene and 5-10 membered heteroaryl-C 1-3 alkylene are each optionally substituted with 1, 2, 3, or 4 substituents independently selected from R 12 ;
each R 12 is independently selected from C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 1-6 haloalkyl, C 3-6 cycloalkyl, C 6-10 aryl, 5-10 membered heteroaryl, 4-7 membered heterocycloalkyl, C 3-6 cycloalkyl-C 1-3 alkylene, 4-7 membered heterocycloalkyl-C 1-3 alkylene, C 6-10 aryl-C 1-3 alkylene, 5-10 membered heteroaryl-C 1-3 alkylene, halo, D, CN, OR a5 , SR a5 , C(O)R b5 , C(O)NR c5 R d5 , C(O)OR a5 , NR c5 R d5 , NR c5 C(O)R b5 , NR c5 C(O)OR a5 , NR c5 S(O)R b5 , NR c5 S(O) 2 R b5 , NR c5 S(O) 2 NR c5 R d5 S(O)R b5 , S(O)NR c5 R d5 , S(O) 2 R b5 , and S(O) 2 NR c5 R d5 ; wherein said C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 3-6 cycloalkyl, C 6-10 aryl, 5-10 membered heteroaryl, 4-7 membered heterocycloalkyl, C 3-6 cycloalkyl-C 1-3 alkylene, 4-7 membered heterocycloalkyl-C 1-3 alkylene, C 6-10 aryl-C 1-3 alkylene, and 5-10 membered heteroaryl-C 1-3 alkylene are each optionally substituted with 1, 2, 3, or 4 substituents independently selected from R g ;
each R 20 is independently selected from C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 1-6 haloalkyl, C 3-10 cycloalkyl, 4-10 membered heterocycloalkyl, C 6-10 aryl, 5-10 membered heteroaryl, C 3-10 cycloalkyl-C 1-3 alkylene, 4-10 membered heterocycloalkyl-C 1-3 alkylene, C 6-10 aryl-C 1-3 alkylene, 5-10 membered heteroaryl-C 1-3 alkylene, halo, D, CN, NO 2 , OR a2 , SR a2 , C(O)R b2 , C(O)NR c2 R d2 , C(O)OR a2 , OC(O)R b2 , OC(O)NR c2 R d2 , NR c2 R d2 , NR c2 C(O)R b2 , NR c2 C(O)OR a2 , NR c2 C(O)NR c2 R d2 , C(═NR e2 )R b2 , C(═NOR a2 )R b2 , C(═NR e2 )NR c2 R d2 , NR c2 C(═NR e2 )NR c2 R d2 , NR c2 S(O)R b2 , NR c2 S(O) 2 R b2 , NR c2 S(O) 2 NR c2 R d2 , S(O)R b2 S(O)NR c2 R d2 , S(O) 2 R b2 , and S(O) 2 NR c2 R d2 ; wherein said C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 3-10 cycloalkyl, 4-10 membered heterocycloalkyl, C 6-10 aryl, 5-10 membered heteroaryl, C 3-10 cycloalkyl-C 1-3 alkylene, 4-10 membered heterocycloalkyl-C 1-3 alkylene, C 6-10 aryl-C 1-3 alkylene and 5-10 membered heteroaryl-C 1-3 alkylene are each optionally substituted with 1, 2, 3, or 4 substituents independently selected from R 21 ;
each R 21 is independently selected from C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 1-6 haloalkyl, C 3-10 cycloalkyl, 4-10 membered heterocycloalkyl, C 6-10 aryl, 5-10 membered heteroaryl, C 3-10 cycloalkyl-C 1-3 alkylene, 4-10 membered heterocycloalkyl-C 1-3 alkylene, C 6-10 aryl-C 1-3 alkylene, 5-10 membered heteroaryl-C 1-3 alkylene, halo, D, CN, OR a4 , SR a4 , C(O)R b4 , C(O)NR c4 R d4 , C(O)OR a4 , NR c4 R d4 , NR c4 C(O)R b4 , NR c4 C(O)OR a4 , NR c4 S(O)R b4 , NR c4 S(O) 2 R b4 , NR c4 S(O) 2

Assignees

• Incyte Corp

Inventors

• Vechorkin Oleg
• Nguyen Minh
• Qi Chao
• Wang Anlai
• Wu Liangxing
• Yao Wenqing
• Zhao Peng

Classifications

• A61K31/519

  ortho- or peri-condensed with heterocyclic rings · CPC title

• A61K45/06

  Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca · CPC title

• C07D487/04 Primary

  Ortho-condensed systems · CPC title

• A61P35/00

  Antineoplastic agents · CPC title

• C07D519/00

  Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups C07D453/00 or C07D455/00 · CPC title