申请人:Array BioPharma, Inc.
公开号:US20180133200A1
公开(公告)日:2018-05-17
Provided herein are compounds of the Formula I:
and stereoisomers and pharmaceutically acceptable salts or solvates thereof, in which A, B, X
1
, X
2
, X
3
, X
4
, Ring D, and E 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 RET-associated diseases and disorders.