7-Amino-3-(sulfonic acid and sulfamoyl substituted tetrazolythio
7-Amino-7-arylthio cephalosporins
7-Carboxymethoxyphenylacetamido-3-cephem derivatives and antibac
7-Cyanoalkylureido 3 heterocylic thio methyl cephalosporins
7-Cyclizedamino-3-heterothiomethyl cephalosporin derivatives
7-Diacyl cephalosporins
7-Diacylimido cephalosporins
7-Methoxy furylureidocephalosporins
7-Methoxy-3-phosphoranylidenemethyl-cephalosporins
7-Methoxycephalosporin derivatives
7-Methoxycephalosporin derivatives
7-Oxygen analogs of cephalosporins
7-Substituted mercaptoacetamido cephamycins
7-Substituted-3-aminoalkyl-, acylaminoalkyl-, or hydroxyalkyl-su
7-Trifluoromethylthioacetamido-3-(3-sulfomethyl-1,2,4-triazol-5-
7-Ureido acetamido substituted cephalosporin antibiotics
7-[(Pyridylthiomethyl)phenyl]acetamido-cephalosporin derivatives
7-[(Pyridylthiomethyl)phenyl]acetamidocephalosporin derivatives
7-[(Substituted-isothioureamethyl)phenyl]-acetamidocephalosporin
7-[(Substituted-isothioureamethyl)phenyl]-acetamidocephalosporin