申请人:Array BioPharma, Inc.
公开号:US20170096425A1
公开(公告)日:2017-04-06
Provided herein are compounds of the General 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.