申请人:Array BioPharma Inc.
公开号:US20220119396A1
公开(公告)日:2022-04-21
Provided herein are compounds of the Formula I:
and stereoisomers and pharmaceutically acceptable salts or solvates thereof, in which A, B, D, E, X
1
, X
2
, X
3
and X
4
have the meanings given in the specification, which are inhibitors of RET kinase and are useful in the treatment and prevention of diseases which can be treated with a RET kinase inhibitor, including diseases or disorders mediated by a RET kinase.