Substituted imidazopyridazines and benzimidazoles as inhibitors of FGFR3

Patent metadata

Field	Value
Publication number	US-9533954-B2
Application number	US-201414267139-A
Country	US
Kind code	B2
Filing date	May 1, 2014
Priority date	Dec 22, 2010
Publication date	Jan 3, 2017
Grant date	Jan 3, 2017

Abstract

The present invention relates to substituted imidazopyridazines and substituted benzimidazoles, as well as pharmaceutical compositions comprising the same, which are FGFR3 inhibitors useful in the treatment of cancer and other diseases.

First claim

What is claimed is:

1. A compound of Formula Ia:

or a pharmaceutically acceptable salt thereof, wherein:
Ar 1 is aryl, heteroaryl, cycloalkyl, or heterocycloalkyl, each optionally substituted by 1, 2, 3, 4, or 5 independently selected R A1 groups;
Ar 2 is aryl, heteroaryl, cycloalkyl, or heterocycloalkyl, each optionally substituted by 1, 2, 3, or 4 independently selected R A2 groups;
B is:
(i) —(CR 3 R 4 ) m1 —(CR 1 R 2 )—(CR 3 R 4 ) m2 —X;
(ii) -L 1 -(CR 3 R 4 ) n —Cy 1 ;
(iii) -Cy 2 -(L 2 ) a -(CR 3 R 4 ) p —Cy 3 ; or
(iv) -Cy 4 -L 3 -Y;

L 1 is C(O)NR, C(O)O, S(O) 2 NR, NRC(O)NR, NRC(S)NR, S, or S(O);
L 2 and L 3 are each independently selected from CO, C(O)O, C(O)NR, S(O) 2 NR, NR, NRC(O)NR, NRC(S)NR, O, S, S(O), and S(O) 2 ;
X is Cy 5 , CN, C(O)NR 5 R 6 , NR 5 C(O)R 7 , NR 5 S(O) 2 R 7 , NR 5 S(O) 2 NR 5 R 6 , NR 5 C(O)OR 8 , or S(O) 2 NR 5 R 6 ;
Y is:
(1) aryl, heteroaryl, or heterocycloalkyl, each optionally substituted by 1, 2, 3, 4, or 5 independently selected R B1 groups;
(2) C 3-7 cycloalkyl substituted by 1, 2, 3, 4, or 5 independently selected R B2 groups; or
(3) C 1-6 alkyl or C 1-6 haloalkyl, each substituted by 1, 2, 3, 4, or 5 independently selected R X groups;

Cy 1 , Cy 2 , Cy 3 , Cy 4 , and Cy 5 are each independently selected from aryl, heteroaryl, cycloalkyl, and heterocycloalkyl, each of which is optionally substituted by 1, 2, 3, 4, or 5 independently selected R Cy groups;
R is independently selected from H and C 1-4 alkyl;
R 1 is halo, cyano, hydroxy, C 1-4 alkyl, C 2-4 cyanoalkyl, C 2-4 alkoxyalkyl, C 1-4 haloalkyl, aryl, heteroaryl, cycloalkyl, or heterocycloalkyl, wherein said aryl, heteroaryl, cycloalkyl, or heterocycloalkyl is optionally substituted by 1, 2, 3, 4, or 5 independently selected R D groups;
R 2 and R 4 are each independently selected from H, halo, hydroxy, C 1-4 alkyl, C 2-4 cyanoalkyl, C 2-4 alkoxyalkyl, and C 1-4 haloalkyl;
R 3 is independently selected from H, halo, cyano, hydroxy, C 1-4 alkyl, C 2-4 cyanoalkyl, C 2-4 alkoxyalkyl, C 1-4 haloalkyl, aryl, heteroaryl, cycloalkyl, and heterocycloalkyl, wherein said aryl, heteroaryl, cycloalkyl, or heterocycloalkyl is optionally substituted by 1, 2, 3, 4, or 5 independently selected R D groups;
R 5 is independently selected from H, C 1-4 alkyl, C 2-4 cyanoalkyl, C 2-4 alkoxyalkyl, and C 1-4 haloalkyl;
R 6 , R 7 , and R 8 are each independently selected from H, C 1-4 alkyl, aryl, heteroaryl, cycloalkyl, and heterocycloalkyl, wherein said C 1-4 alkyl, aryl, heteroaryl, cycloalkyl, or heterocycloalkyl is optionally substituted with 1, 2, 3, 4, 5, or 6 independently selected R D groups;
or R 5 and R 6 together with the N atom to which they are attached form a 4-, 5-, 6-, or 7-membered heterocycloalkyl ring optionally substituted by 1, 2, 3, 4, or 5 independently selected R D groups;
each R A1 is independently selected from halo, C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 1-6 haloalkyl, halosulfanyl, aryl, cycloalkyl, heteroaryl, heterocycloalkyl, 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(═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 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 1-6 haloalkyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl are each optionally substituted with 1, 2, 3, 4, or 5 substituents independently selected from halo, C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 1-6 haloalkyl, halosulfanyl, 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 , C(═NR e )NR c R d , NR c C(═NR e )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 , 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 ;
each R A2 is independently selected from halo, C 1-4 alkyl, C 2-4 alkenyl, C 2-4 alkynyl, C 1-4 haloalkyl, halosulfanyl, 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(═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 1-4 alkyl, C 2-4 alkenyl, C 2-4 alkynyl, C 1-4 haloalkyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl are each optionally substituted with 1, 2, or 3 substituents independently selected from halo, C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 1-6 haloalkyl, halosulfanyl, 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 , C(═NR e1 )NR c1 R d1 , NR c1 C(═NR e1 )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 , 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 ;
each R B1 , R B2 , R Cy , and R D is independently selected from halo, C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 1-6 haloalkyl, halosulfanyl, aryl, cycloalkyl, heteroaryl, heterocycloalkyl, 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(═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 1-6 haloalkyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl are each optionally substituted with 1, 2, 3, 4, or 5 substituents independently selected from halo, C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 1-6 haloalkyl, halosulfanyl, 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 , C(═NR e2 )NR c2 R d2 , NR c2 C(═NR e2 )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 , 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 ;
each R X is independently selected from C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, aryl, cycloalkyl, heteroaryl, heterocycloalkyl, CN, NO 2 , OR a3 , SR a3 , C(O)R b3 , C(O)NR c3 R d3 , C(O)OR a3 , OC(O)R b3 , OC(O)NR c3 R d3 , NR c3 R d3 , NR c3 C(O)R b3 , NR c3 C(O)OR a3 , NR c3 C(O)NR c3 R d3 , C(═NR e3 )R b3 , C(═NR e3 )NR c3 R d3 , NR c3 C(═NR e3 )NR c3 R d3 , 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 1-6 haloalkyl, aryl, cycloalkyl, heteroaryl, and heterocycloalkyl are each optionally substituted with 1, 2, 3, 4, or 5 substituents independently selected from halo, C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, C 1-6 haloalkyl, halosulfanyl, CN, NO 2 , OR a3 , SR a3 , C(O)R b3 , C(O)NR c3 R d3 , C(O)OR a3 , OC(O)R b3 , OC(O)NR c3 R d3 , C(═NR e3 )NR c3 R d3 , NR c3 C(═NR e3 )NR c3 R d3 , NR c3 R d3 , NR c3 C(O)R b3 , NR c3 C(O)OR a3 , NR c3 C(O)NR c3 R d3 , 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 ;
each R a , R b , R c , and R d is independently selected from H, C 1-6 alkyl, C 1-4 haloalkyl, C 2-6 alkenyl, C 2-6 alkynyl, aryl, cycloalkyl, heteroaryl, heterocycloalkyl, arylalkyl, heteroarylalkyl, cycloalkylalkyl, and heterocycloalkylalkyl, wherein said C 1-6 alkyl, C 2-6 alkenyl, C 2-6 alkynyl, aryl, cycl

Assignees

• Incyte Corp
• Incyte Holdings Corp

Inventors

• Yao Wenqing
• Zhang Colin
• Xu Meizhong
• Zhuo Jincong
• He Chunhong

Classifications

• A61P35/02

  specific for leukemia · CPC title

• A61P35/00

  Antineoplastic agents · CPC title

• C07D487/04

  Ortho-condensed systems · CPC title

• A61K31/5025 Primary

  ortho- or peri-condensed with heterocyclic ring systems · CPC title

• C07D405/12

  linked by a chain containing hetero atoms as chain links · CPC title