PROCESS FOR THE PREPARATION OF 2,2-DIHALOVINYL OR ETHYNYL-GROUPED CEPHEM COMPOUNDS AND NOVEL PRODUCTS THUS OBTAINED WITH ANTIMICROBIAL ACTIVITY

摘要

P CEPHEM COMPOUNDS HAVING THE FORMULA: BR/ (CF DRAWING IN BOPI) BR/ OR R IS THE AMINO GROUP OR A GROUP ACYLAMINO, R IS A 2,2-DIHALOVINYL GROUP OR THE ETHYNYL GROUP AND R IS THE CARBOXY GROUP OR PROTECTED CARBOXY GROUP, AND THEIR PHARMACEUTICALLY ACCEPTABLE SALTS, ARE PRODUCTS WITH ANTIBACTERIAL PROPERTIES. / P