PROCESS FOR THE PREPARATION OF CEPHEM COMPOUNDS WITH ANTIMICROBIAL ACTIVITY AND NEW PRODUCTS THUS OBTAINED

摘要

P CEPHEM COMPOUNDS HAVING THE FORMULA BR/ (CF DRAWING IN BOPI) BR/ ARE AVAILABLE OR R IS THE AMINO GROUP OR A GROUP ACYLAMINO, R IS HYDROGEN, AN ARYL GROUP THAT CAN HAVE ONE OR MORE SUITABLE SUBSTITUENTS, A HETEROCYCLIC GROUP WHICH MAY HAVE ONE OR MORE SUITABLE SUBSTITUTES, OR THE CYANO GROUP AND R IS THE CARBOXY GROUP OR A CARBOXY PROTECTED GROUP, AND THEIR PHARMACEUTICALLY ACCEPTABLE SALTS, THESE PRODUCTS BEING USED AS ANTIBACTERIAL AGENTS. / P