Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Yamanouchi Pharmaceutical Co Ltd
Original Assignee
Yamanouchi Pharmaceutical Co Ltd
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Filing date
Publication date
Application filed by Yamanouchi Pharmaceutical Co LtdfiledCriticalYamanouchi Pharmaceutical Co Ltd
Priority to JP12330076ApriorityCriticalpatent/JPS5350191A/en
Publication of JPS5350191ApublicationCriticalpatent/JPS5350191A/en
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
PURPOSE: Cephalosporin derivatives of formula I [X is H or methoxy; R1 is O, S or amino; R2 is H or lower alkyl; A is (lower alkyl-substituted) 1, 3, 4-thiadiazolyl or tetratolyl), where the bond between 2-and 3-position in the pyridine ring is a double bond when R1 is amino], e.g., 3-(1-methyltetrazole-5-yl) thiomethyl-7(2-oxo-1,2-dihydropyrimidine-4-yl) thioacetamido-▵3-cephem-4-carboxylic acid.
COPYRIGHT: (C)1978,JPO&Japio
JP12330076A1976-10-141976-10-14Novel cephalosporin derivaties and their preparation
PendingJPS5350191A
(en)