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公开(公告)号:US5317099A
公开(公告)日:1994-05-31
申请号:US959359
申请日:1992-10-13
申请人: Kwang H. Lee , Dong H. Ko , Young J. Kim , Myung X. Xiang , Myeong S. Yoon
发明人: Kwang H. Lee , Dong H. Ko , Young J. Kim , Myung X. Xiang , Myeong S. Yoon
IPC分类号: A61K31/545 , A61K31/546 , A61P31/04 , C07D501/00 , C07D501/06 , C07D501/20 , C07D501/22 , C07D501/26 , C07D501/34 , C07D501/36
CPC分类号: C07D501/00
摘要: A process for preparing B-lactam derivatives of the formula (I): ##STR1## wherein R.sup.1 represents hydrogen or a metal salt; and R.sup.2 represents hydrogen, acetoxy methyl, (2,5-dihydro-2-methyl-6-hydroxy-5-oxo-as-triazin-3-yl)thiomethyl or (1-methyl-1-H-tetrazol-5-yl)thiomethyl is disclosed. This process comprises the steps of (a) reacting triphenylphosphine and hexachloroethane or carbon tetrachloride with 2-(2-aminothiazol-4-yl)-2-syn-methoxyimino acetic acid in an organic solvent to give the corresponding acyloxyphosphonium chloride derivative of the formula: ##STR2## (b) acylating a previously silylated derivative of 7-ACA with this acyloxyphosphonium chloride derivative without its isolation.
摘要翻译: 一种制备式(I)的β-内酰胺衍生物的方法:其中R 1表示氢或金属盐; 并且R 2表示氢,乙酰氧基甲基,(2,5-二氢-2-甲基-6-羟基-5-氧代 - 三嗪-3-基)硫代甲基或(1-甲基-1H-四唑-5-基) 噻吩基)硫代甲基。 该方法包括以下步骤:(a)使三苯基膦与六氯乙烷或四氯化碳与2-(2-氨基噻唑-4-基)-2-顺 - 甲氧基亚氨基乙酸在有机溶剂中反应,得到相应的式偕氯化鏻氯化物衍生物 (b)在不分离的情况下,用该酰氯氧氯化鏻衍生物酰化7-ACA的先前甲硅烷基化衍生物。