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。