申请人:Takeda Pharmaceutical Company Limited
公开号:US08247429B2
公开(公告)日:2012-08-21
The present invention provides a compound represented by the formula
wherein R1 is a hydrocarbon group optionally having substituent(s), amino optionally having substituent(s), hydroxy optionally having a substituent or a heterocyclic group optionally having substituent(s), R2 is a hydrogen atom or a hydrocarbon group optionally having substituent(s), R3 is a hydrogen atom, a halogen atom, a hydrocarbon group optionally having substituent(s), amino optionally having substituent(s), hydroxy optionally having a substituent or mercapto optionally having a substituent, Xa, Xb, Xc and Xd are each a carbon atom or a nitrogen atom, provided that any one or two of Xa, Xb, Xc and Xd is/are nitrogen atom(s), m is 0 to 2, and rings A to C are each a ring optionally having substituent(s), or a salt thereof, which is useful as an agent for the prophylaxis or treatment of a disease relating to an action of melatonin, and the like.
本发明提供一种化合物,其表示为以下式子:其中R1是一个烃基,可选地具有取代基,氨基,可选地具有取代基的羟基或杂环基,可选地具有取代基;R2是氢原子或烃基,可选地具有取代基;R3是氢原子,卤素原子,烃基,可选地具有取代基的氨基,可选地具有取代基的羟基或可选地具有取代基的巯基;Xa、Xb、Xc和Xd分别是碳原子或氮原子,前提是Xa、Xb、Xc和Xd中的任何一个或两个是/是氮原子;m为0至2;环A至C分别是可选地具有取代基的环或其盐,其作为一种预防或治疗与褪黑激素作用有关的疾病的药剂等非常有用。