A convenient protective method for the 7-amino function on a cephem derivative in wittig vinylation
作者:Yousuke Katsura、Matsuhiko Aratani
DOI:10.1016/0040-4039(94)88521-4
日期:1994.12
A novel preparative pathway for diphenylmethyl 7 β-amino-3-vinylceph-3-em-4-carboxylate from 3-chloromethyl derivative is described. As a convenient protecting group for the 7-amino function in a Wittig reaction, six membered azine derivatives incorporating the 7-amino group were developed as a surrogate of conventional protecting groups.
描述了一种由3-氯甲基衍生物制备二苯基甲基7β-氨基-3-乙烯基ceph-3-em-4-羧酸酯的新途径。作为在Wittig反应中用于7-氨基功能的便利保护基,开发了结合了7-氨基的六元嗪衍生物作为常规保护基的替代。