New cephalosporins with 7-acyl groups derived from .BETA.-ketoacids. I. 7-(.BETA.-Ketoacylamino)cephalosporins.
作者:MITSUO NUMATA、MASAYOSHI YAMAOKA、ISAO MINAMIDA、MASAAKI KURITANI、YOSHIO IMASHIRO
DOI:10.7164/antibiotics.31.1245
日期:——
The synthesis and antimicrobial profile of a series of 7-(β-ketoacylamino)cephalosporins (1) bearing an acetoxymethyl or a heterocyclicthiomethyl group at the 3-position are described. Of this series, 3-[[(1-methyl-1H-tetrazol-5-yl)thio]methyl]-7-(3-oxobutyrylamino)ceph-3-em-4- carboxylic acid (11) showed moderate antibacterial activities in in vitro and in vivo tests.
本文介绍了一系列在 3 位上带有乙酰氧甲基或杂环硫甲基的 7-(β-酮酰氨基)头孢菌素 (1) 的合成和抗菌谱。在该系列中,3-[[(1-甲基-1H-四唑-5-基)硫]甲基]-7-(3-氧代丁酰基氨基)头孢-3-em-4-羧酸(11)在体外和体内试验中显示出中等抗菌活性。