Novel antibiotic analogues of cephalosporins

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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4242484, 42424852, 42424853, 42424854, 542422, 260239A, 260941, 260968, 2603407, 2603409R, 260349, 544 90, 549 5, 549 6, 549 7, A61K 31535, C07D26534

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042268664

ABSTRACT:
Novel antibiotics of the formula: ##STR1## and its salts, esters and amides wherein R is acyl;

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