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Yamanouchi Pharmaceutical Co Ltd
Original Assignee
Yamanouchi Pharmaceutical Co Ltd
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Filing date
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Application filed by Yamanouchi Pharmaceutical Co LtdfiledCriticalYamanouchi Pharmaceutical Co Ltd
Priority to JP27876ApriorityCriticalpatent/JPS5283690A/en
Publication of JPS5283690ApublicationCriticalpatent/JPS5283690A/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
PURPOSE: Cephalosporin derivatives or their nontoxic salts I [R1 is acetoxy, -SR2 (R2 is thiadiazolyl, triazolyl, tetrazolyl, thiazolyl, pyridazyl, etc. which may have a substituent], e.g. 3-(5-ethoxy-1,3,4-thiadiazol-2-yl)thiomethyl-7-trifluoromethylthioacetamide-7α-methoxy-3-(1-methyl-1H-tetrazol-5-yl)thiomethyl- 3cephem-4-carboxylic acid.