Cephem derivatives and antibacterial agents comprising said comp

Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Bacterium or component thereof or substance produced by said...

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544 27, 544 22, 544 28, C07D50136

Patent

active

043528015

ABSTRACT:
Cephem derivatives represented by the formula: ##STR1## wherein R.sub.1 represents a hydrogen atom or a hydroxyl group, R.sub.2 represents a lower alkyl group or a chloro-substituted lower alkyl group, and R.sub.3 represents a lower alkanoyloxy group or a nitrogen-containing heterocyclic thio group,
and the pharmaceutically acceptable salts thereof. The cephem derivatives exhibit excellent antibacterial activity and are effective against Gram-positive and Gram-negative bacteria.

REFERENCES:
patent: 4285941 (1981-08-01), Machida et al.

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