4,6 DIHYDROPYRROLO [3,4-C] PYRAZOLE-5 (1H)-CARBONITRILE DERIVATES FOR TREATING CANCER
申请人:MISSION THERAPEUTICS LIMITED
公开号:US20210221813A1
公开(公告)日:2021-07-22
The present invention relates to novel compounds and methods for the manufacture of inhibitors of deubiquitylating enzymes (DUBs) and/or desumoylating enzymes. In particular, the invention relates to the inhibition of ubiquitin C-terminal hydrolase 7 or ubiquitin specific peptidase 7 (USP7). The invention further relates to the use of DUB or desumoylating inhibitors in the treatment of cancer. Described herein are compounds of formula (I) or a pharmaceutically acceptable salt thereof, wherein R
1a
, R
1b
, R
1c
and R
1d
each independently represent hydrogen, optionally substituted C
1
-C
6
alkyl or R
1a
and R
1b
together form an optionally substituted C
3
-C
6
cycloalkyl ring, or R
1c
and R
1d
together form an optionally substituted C
3
-C
6
cycloalkyl ring; A is a 5 membered nitrogen-containing aromatic ring and is substituted with at least one optionally substituted 5 to 10 membered monocyclic or bicyclic heteroaryl or aryl ring attached through an optional linker.