发明名称 CEPHEM COMPOUNDS AND THEIR PRODUCTION
摘要 CEPHEM COMPOUNDS AND THEIR PRODUCTION A compound of the formula: or wherein R1 is hydrogen, or a salt thereof, is useful as an intermediate for the production of cephem compounds, and some of them are useful as antimicrobial agent.
申请公布号 CA1297056(C) 申请公布日期 1992.03.10
申请号 CA19840470115 申请日期 1984.12.14
申请人 TAKEDA CHEMICAL INDUSTRIES, LTD. 发明人 HARADA, SETSUO;TSUBOTANI, SHIGETOSHI;ONO, HIDEO
分类号 C07D501/04;C07D501/57;C12P35/08 主分类号 C07D501/04
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