申请人:TAISHO PHARMACEUTICAL CO. LTD
公开号:EP0272110A2
公开(公告)日:1988-06-22
Erythromycin A derivativ es represented by the general formula
wherein R¹ is a group of the formula R⁷CH₂- (wherein R⁷ is a hydrogen group or a lower alkyl group) or a group of the formula R⁸O- (wherein R⁸ is a lower alkyl group), R² is R⁸, a cycloalkyl group, a phenyl group or an aralkyl group, or R² and R₇ together form an alkylene group, R³ is a hydrogen atom, a lower alkyl group, a phenyl group or an aralkyl group, or R³ and R⁷ together form an alkylene group, or R² and R³ together form an alkylene group, R⁴ is a lower alkyl group, R⁵ is a substituted silyl group, and R⁶ is a hydrogen atom or R₅, are useful as intermediates for the synthesis of antibacterial agents.
由通式表示的红霉素 A 衍生物
其中 R¹ 是式 R⁷CH₂- 的基团(其中 R⁷ 是氢基或低级烷基)或式 R⁸O- 的基团(其中 R⁸ 是低级烷基),R² 是 R⁸、环烷基、苯基或芳烷基,或 R² 和 R₇ 共同形成一个亚烷基,R³ 是氢原子、R⁴是低级烷基,R⁵是取代的硅烷基,R⁶是氢原子或 R₅,可作为合成抗菌剂的中间体。