Cephalosporins with the formula
in which R represents various acyl substituents;
n represents 24, preferably 2,
n' represents 1-4, preferably 1,
R' represents hydrogen or lower alkyl from one to four carbons, show antibacterial activity.
They can be prepared by reacting the corresponding 3-acetoxy- methyl cephalosporin with the appropriate carboxyalkylamino-alkyltetrazolethione. The tet- razolethiones used as intermediates also form part of the invention.
头孢菌素
其中 R 代表各种酰基取代基;
n 代表 24,最好是 2、
n' 代表 1-4,最好是 1、
R'代表氢或 1 至 4 个碳原子的低级烷基,具有抗菌活性。
它们可通过相应的 3-乙酰氧基甲基
头孢菌素与适当的羧基烷基
氨基烷基
四唑硫酮反应制备。用作中间体的
四唑硫酮也是本发明的一部分。