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Priority claimed from US05/784,885external-prioritypatent/US4082912A/en
Application filed by Bristol Myers CofiledCriticalBristol Myers Co
Priority claimed from IE1969/77Aexternal-prioritypatent/IE45613B1/en
Publication of IE810269LpublicationCriticalpatent/IE810269L/en
Publication of IE45614B1publicationCriticalpatent/IE45614B1/en
Certain 7-acylamido-3-(2-carboxyalkyl-2,3-dihydro-s-triazolo[4,3-b]pyridazin-3-on-6-ylmethyl)-3-cephem-4-carboxylic acids their salts and easily hydrolyzed esters