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公开(公告)号：KR850000127B1
公开(公告)日：1985-02-27
申请号：KR740001507
申请日：1974-02-15
Applicant: FUJISAWA PHARMACEUTICAL CO
Inventor： KAMIYA DAKASI , DERASI SUDOMU , OKU DERAO , HASIMOTO MASASI , NAKAGUSI OSAMU
IPC: C07D501/22 , C07D501/60
Abstract: Cephemcarboxylic acids I [R1 = H, OAc, 1-methyltetrazol-5ylthio, 2- methyl-1,3,4-thiadiazol-5-ylthio; R2 = Ph, 4-HOC6H4, 3,4-Cl(HO)C6H3 were converted to N-acylation products II [R1 = alkyl; R2 = acylamino; X = S . 2-methyl-7-amino-3-cephem-4-carbonic acid was stirred with diglycolic anhydride in Me2CO at room temperature to give II.
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