A novel C(3) chlorination of p-nitrobenzyl 1-carbadethia-2-oxocephem 4-carboxylate 1 with sulphur dichloride is described. Reaction of the resulting 3-chloro-compound 8 with various thiols, and modifications at C(2) provided the title compounds.
描述了一种新型的C(3)对
氯硝基甲烷1-carbadethia-2-oxocephem 4-
羧酸盐1与
二氯化硫的
氯化。所得的3-
氯化合物8与各种
硫醇的反应,以及在C(2)处的修饰提供了标题化合物。