申请人:Terauchi Taro
公开号:US20120165339A1
公开(公告)日:2012-06-28
A cyclopropane derivative represented by the following formula (I) or a pharmaceutically acceptable salt thereof has orexin receptor inhibitory action, and thus, is extremely useful as an agent for preventing or treating sleep disorder or dyssomnia caused by orexin, including insomnia as a typical example:
wherein A
1
, A
2
and A
3
each independently represent an aryl group, a heterocyclyl group or the like, R
1
, R
2
and R
3
each independently represent a hydrogen atom, a C
1-6
alkyl group or the like, X represents an oxygen atom or the like, and L represents a bond or the like.
由以下公式(I)表示的环丙烷衍生物或其药用可接受的盐具有促进促进醒脑肽受体的作用,因此,极其有用作为预防或治疗由促进醒脑肽引起的睡眠障碍或失眠症的药物,包括失眠作为典型例子:其中A1、A2和A3各自独立地表示芳基、杂环烷基或类似物,R1、R2和R3各自独立地表示氢原子、C1-6烷基或类似物,X表示氧原子或类似物,L表示键或类似物。