N,N'-carboxyl-bis-(4-ethyl-2,3-dioxo)-piperazine, process for the preparation thereof and use thereof
申请人:GEMA S.A.
公开号:EP0317484A2
公开(公告)日:1989-05-24
A new compound called N,N'-carbonyl-bis-(4-ethyl-2,3-dioxo)-piperazine of Formula I
A process for the preparation thereof based on the reaction of 4-ethyl-2,3-dioxo-piperazine or a trimethylsilyl derivative thereof with carbonyl chloride or a derivative thereof.
The use of the compound of Formula I as an intermediate in the preparation of compounds of Formula II
where R is a radical, substituted in alpha position, of a molecule of an acid selected from the group formed by phenylacetic acid, p-hydroxy phenylacetic acid, a 6-(phenylacetamido)-penicillanic acid and a 7-(phenylacetamido)-cephalosporanic acid.
一种名为 N,N'-羰基-双-(4-乙基-2,3-二氧代)-哌嗪的新化合物,其式为 I
一种基于 4-乙基-2,3-二氧代哌嗪或其三甲硅基衍生物与羰酰氯或其衍生物反应的制备方法。
使用式 I 化合物作为制备式 II 化合物的中间体
其中 R 是选自苯乙酸、对羟基苯乙酸、6-(苯乙酰氨基)-青霉烷酸和 7-(苯乙酰氨基)-头孢烷酸所组成的组中的酸分子的α位取代基。