申请人:Takeda Chemical Industries, Ltd.
公开号:US06552054B1
公开(公告)日:2003-04-22
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.
该发明提供了以下通用公式的咖啡酮衍生物,一种制备这种咖啡酮衍生物的方法,以及包含这种咖啡酮衍生物的用于骨疾病和软骨病的预防和治疗剂:其中环A是一个可选取代的苯环;R1是一个可选取代的非芳香杂环基团;R2是氢原子或碳氢基团;R3是氢原子、碳氢基团或卤素;n是0-3之间的整数;或其盐。