申请人:TAIHO PHARMACEUTICAL CO., LTD.
公开号:US20180009817A1
公开(公告)日:2018-01-11
The present invention provides a novel RET inhibitor comprising, as an active ingredient, a compound or a salt thereof that have not been known for their RET inhibitory activity, and also provides an agent for preventing or treating diseases (e.g., malignant tumors) that can be prevented or treated by RET inhibitory activity. The RET inhibitor comprises, as an active ingredient, a compound represented by Formula (I) below or a salts thereof:
wherein A, R
1
to R
3
, X, and n are as defined in the specification.
本发明提供了一种新型RET抑制剂,其包括作为活性成分的化合物或其盐,这些化合物以前并未因其RET抑制活性而为人所知,并且还提供了一种用于预防或治疗疾病(例如恶性肿瘤)的药剂,该疾病可通过RET抑制活性预防或治疗。该RET抑制剂包括作为活性成分的由下式(I)表示的化合物或其盐:其中A、R1至R3、X和n如规范中所定义。