申请人:Daiichi Sankyo Company, Limited
公开号:EP2540715A1
公开(公告)日:2013-01-02
Intermediates of formula (Ia) or (Ib) are provided:
wherein R11 and R21 represents a hydrogen atom or an amino-protecting group, and R16 represents an amino-protecting group, useful for the production of quinolone synthetic antibacterial agent of formula (I) wherein substituents R6 and R7 taken together with the carbon atoms to which they are bonded form a cyclic structure which may contain an oxygen atom as a ring constituent atom, the cyclic structure forming a 5-4, 5-5, or 5-6 fused bicyclic pyrrolidinyl substituent, the substituent being bonded to a quinolone mother skeleton Q containing a pyridobenzoxazine structure:
提供了式 (Ia) 或 (Ib) 的中间体:
其中 R11 和 R21 代表氢原子或氨基保护基团,R16 代表氨基保护基团,可用于生产式 (I) 的喹诺酮合成抗菌剂 其中取代基 R6 和 R7 与它们所结合的碳原子一起形成环状结构,该环状结构可包含一个氧原子作为环组成原子、该环状结构形成一个 5-4、5-5 或 5-6 融合的双环吡咯烷基取代基,该取代基与含有吡啶并噁嗪结构的喹诺酮母骨架 Q 键合: