95557 ⎘
Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula:, e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring; Preparation from compounds already containing the ring or condensed ring systems, e.g. by dehydrogenation of the ring, by introduction, elimination or modification of substituents Acylation of 7-aminocephalosporanic acid
PROCESS FOR PREPARING CEFTAROLINE SALTS OR HYDRATES THEREOF
#2CEPHALOSPORIN COMPOSITIONS AND METHODS OF MANUFACTURE
#3Cephalosporin compositions and methods of manufacture
#4PROCESSES FOR THE PREPARATION OF CEPHEM DERIVATIVES
#5Processes for the preparations of cefepime
#6Processes for the preparation of cephem derivatives