公开(公告)号：US09969688B2

公开(公告)日：2018-05-15

申请号：US15502793

申请日：2015-10-21

Applicant: HISAMITSU PHARMACEUTICAL CO., INC.

Inventor： Atsushi Sonobe ,  Takashi Yasukochi ,  Yasunori Takada ,  Kenji Atarashi ,  Motohiro Suzuki ,  Shinichi Yokota

IPC: C07D213/75

CPC classification number: C07D213/75 ,  A61K31/44

Abstract: The present invention provides a compound represented by the formula (I) or a pharmaceutically acceptable salt thereof: wherein R is a hydrogen atom, a C1-6 alkyl group optionally substituted with one or more hydroxyl groups, a C1-6 alkoxy group, or a cyano group.