发明公开
EP0592677A1 Beta-LACTAM COMPOUND AND CEPHEM COMPOUND, AND PRODUCTION THEREOF 失效
Beta-Laktam和Cepham Verbindungen und Ihre Herstellung。

Beta-LACTAM COMPOUND AND CEPHEM COMPOUND, AND PRODUCTION THEREOF
摘要:
A β-lactam compound and a 2-(substituted methyl)-3-cephem compound, both being useful as an intermediate for the synthesis of cephem antibiotics and so forth. The lactam compound is represented by general formula (I), wherein R¹ represents protected amino, etc.; R² represents hydrogen, etc.; R³ represents hydrogen or a protective group for a carboxyl group; R⁴ represents optionally substituted aryl; and R⁵ represents optionally substituted alkenyl, etc. The cephem compound is represented by general formula (II), wherein R¹, R² and R³ are each as defined above; and R⁶ represents optionally substituted aryl.
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