7-[2-(2-Aminothiazol-4-yl)-2-cyclopentyloxyiminoacetamido]-3-cep

7-[2-(2-Aminothiazol-4-yl)-2-substituted thio-acetamido] cephalo

7-[2-[(Substituted benzoyl)amino]acetamido]cephalosporins

7-[2-[(Substituted benzoyl]amino]acetamido]cephalosporins

7-[2-[.omega.-(1,3-Dit hiolan-2-imino)substituted]-acetylamino]c

7-[5-Oxo-3-hydroxy-2-(3-substituted)-3-hydroxypropyl)-1- cyclope

7-[D-.alpha.-(4-Hydroxy-1,5-naphthyridine-3-carboxamido)-.alpha.

7-[D.alpha.-(Coumarin-3-carboxamido)arylacetamido]-cephalosporan

7-[Substituted oximinoacetamido]-3-[hydroxy alkyltetrazolo]cepha

7-[Sulfomethyl)phenyl]acetamidocephalosporin derivatives

7-[[Amino(1,3-dihydrobenzo[c]thienyl)acetyl]amino]cephalosporin

7-{3-Hydroxy-2-[4-hydroxy-4-(lower alkyl)-trans-1-octen-1-yl]-5-

7-{3-Hydroxy-2.beta.-[4-hydroxy-4-(lower alkyl)-trans-1-octen-1-

7.alpha.-(.xi.-aminoalkyl)-estratrienes, process for their produ

7.alpha.-Methoxy-7.beta.-(1,3-dithietane-2-carboxamido)cephalosp

7.alpha.-METHOXY-CEPHALOSPORANIC ACID DERIVATIVES

7.alpha.-Methoxy-cephalosporins

7.alpha.-Methoxycephalosporin derivatives

7.beta.-(2'-(1",3",5"-Triazepin-4"-one)-2'-(oxime ether)-acetami

7.beta.-(2-Aryl-2-hydroxyiminoacetamido)ceph-3-em-4-carboxylic a