专利名称：Acylthiomethyl esters of cephalosporins发明人：BREUER; HERMANN申请号：US51656674申请日：19741021公开号：US3929774A公开日：19751230
摘要：New acylthiomethyl esters of cephalosporins have the formula WHEREIN R1 istetrazolylmethyl or (lower alkyl)tetrazolylmethyl; R2 is hydrogen or lower alkyl; R3 islower alkyl; and X is thiadiazolylthio or (lower alkyl)thiadiazolylthio. They are useful asantibacterial agents.
申请人：E. R. SQUIBB & SONS, INC.
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