Esters of 2-vinylclav-2-em-3-carboxylic acid and process for preparing same

摘要

2-Vinylclavem compounds are disclosed which have been found of value in the synthesis of thio-derivatives of clavulanic acid which possess antibiotic and beta -lactamase inhibitory activity. Methods for preparing the vinylclavem compounds are disclosed and processes for preparing the thio-derivatives are given.