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3-PROPENYLCEPHEM DERIVATIVES, THEIR PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM
3-PROPENYLCEPHEM DERIVATIVES, THEIR PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM
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机译:3-PR丙啶衍生物,其制备及其组成的药物成分
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摘要
A 3-propenylcephem derivative of the following formula: CHEM wherein R1 represents a fluoro-substituted lower alkyl group or a cyano-substituted lower alkyl group, and A represents a cyclic or an acylic ammonio group, or a pharmaceutically acceptable salt thereof, exhibiting excellent anti-bacterial activities against both Gram-positive bacteria and Gram-negative bacteria; Process for the preparation thereof; Anti-bacterial composition; Intermediate for the 3-propenylcehem derivative; and Process for the preparation of the intermediate.
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