发明名称 Process for preparing an acetidinone compound
摘要 <p>By treating a compound of the formula 5 <IMAGE> with an acid in the presence of water, the thiazoline ring is opened to give a compound of the formula 6 <IMAGE> where the substituents are as defined in Claim 1. The compounds obtained are useful starting materials for synthesising the cephem ring.</p>
申请公布号 CH630074(A5) 申请公布日期 1982.05.28
申请号 CH19800000748 申请日期 1980.01.30
申请人 SHIONOGI & CO., LTD. 发明人 TERUJI TSUJI;YOSHIO HAMASHIMA;MITSURU YOSHIOKA;MASAYUKI NARISADA;HIROSHI TANIDA;TAICHIRO KOMENO;WATARU NAGATA
分类号 C07D205/095;C07D501/08;C07D501/10;C07D501/20;C07D501/59;(IPC1-7):07D205/08 主分类号 C07D205/095
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