[EN] TERTIARY AMINE SALTS OF 2-(2-AMINOTHIAZOLE-4-YL)-2-ACYLOXYIMINO)ACETIC ACID<br/>[FR] SELS D'AMINE TERTIAIRE DE L'ACIDE 2-(2-AMINOTHIAZOLE-4-YL)-2-(ACYLOXYIMINO) ACETIQUE
申请人:SANDOZ AG
公开号:WO2006008160A1
公开(公告)日:2006-01-26
Subject of the present invention are crystalline tertiary amine salts of 2-(2-aminothiazole-4yl)-2-(acyloxyimino)acetic acid compounds of formula (I) wherein R1, R2 and R3 independently represents unsubstituted or substituted alkyl, cycloalkyl or aryl, and R4 denotes acyl, which may be obtained in anhydrous form. Crystalline compounds of formula I are useful in a reaction step with an activating agent in order to produce cefdinir. Additionally, a process to prepare compounds of formula I is a part of the present invention.
本发明的主题是公式(I)的2-(2-氨基噻唑-4-基)-2-(酰氧亚胺)乙酸化合物的晶体三级胺盐,其中R1、R2和R3分别表示未取代或取代的烷基、环烷基或芳基,R4表示酰基,可以以无水形式获得。公式I的晶体化合物在与活化剂反应步骤中用于制备头孢地尼尔。此外,制备公式I化合物的方法是本发明的一部分。