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Sumitomo Chemical Co Ltd
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Sumitomo Chemical Co Ltd
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Application filed by Sumitomo Chemical Co LtdfiledCriticalSumitomo Chemical Co Ltd
Priority to JP6421477ApriorityCriticalpatent/JPS52156894A/en
Publication of JPS52156894ApublicationCriticalpatent/JPS52156894A/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
PURPOSE: 7-(N-Acylamino-α-arylacetamido)cephalosporins I(A is pyridine ring; R1 is OH; R2 and R3 are H, nitro, dialkylamino, alkanoylamino, amino, etc.; Het is pyridazine ring), e.g. 7-[D-α-(4-hydroxy-pyridine-3-carboxylic acid amido)-α-p-hydroxyphenylacetamido]-3-(3-hydroxypridazine-6-yl)thiomethyl3-cephem-4-carboxylic acid II.