申请人:Takeda Chemical Industries, Ltd.
公开号:EP1211251A1
公开(公告)日:2002-06-05
The invention provides chromone derivatives of the following general formula, a process for preparing such chromone derivatives and a prophylactic and therapeutic agent comprising such chromone derivatives for bone diseases and chondropathy:
wherein the ring A is an optionally substituted benzene ring; R1 is an optionally substituted non-aromatic heterocyclic group; R2 is a hydrogen atom or hydrocarbon group; R3 is a hydrogen atom, hydrocarbon group or halogen; n is an integer of 0-3; or a salt thereof.
本发明提供了通式如下的铬酮衍生物、制备此类铬酮衍生物的工艺以及包含此类铬酮衍生物的用于骨病和软骨病的预防和治疗剂:
其中,环 A 是任选取代的苯环;R1 是任选取代的非芳香杂环基团;R2 是氢原子或烃基团;R3 是氢原子、烃基团或卤素;n 是 0-3 的整数;或其盐。