7,8-Dihydro-2,5,8- trisubstituted-7-oxo-pyrido[2,3-d]pyrimidine-

7,8-Dihydroisomorphine derivative, namely azidoethylmorphine

7-((5'-N-Methylthioacetamido)-adipoamido)cephalosporin derivativ

7-(.alpha.-SUBSTITUTED GLYCINAMIDO)-3-SUBSTITUTED METHYL-3-CEPHE

7-(.alpha.-Substituted glycinamido)-3-substituted methyl-3-cephe

7-(.alpha.-Substituted glycinamido)-3-substituted methyl-3-cephe

7-(.alpha.-Sulfoacylamido)cephalosporins

7-(.beta.-Aminoac ylamino)-3-heterocyclic-thiomethyl-3-cephem-4-

7-(.beta.-Aminoacylamino)-3-substituted-3-cephem-4-carboxylic ac

7-(1,3-Dithiolan-2-imino)-.DELTA..sup.2 -cephalosporanic acid de

7-(1,3-Dithiolan-2-imino)-.DELTA..sup.2 -cephalosporanic acid de

7-(1,3-Dithiolan-2-imino)cephalosporanic acid derivatives

7-(1,3-Dithiolan-2-imino)cephalosporanic acid derivatives

7-(1-pyrrolidinyl)-3-quinolone- and - naphthyridone-carboxylic a

7-(2,3-Dihydrobenzo-5-furanyl)-acetamido cephalosporin derivativ

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

7-(2-Amino-4-thiazolyl)-acetamido cephalosporanic acids

7-(2-imidazolnylamino) quinoline compounds useful as alpha-2 adr

7-(4-aminomethyl-3-me thyloxyiminopyrrolidin-1-yl)-1-cyclopropyl

7-(4-[4-aminophenyl)sulphonyl]-1-piperazinyl fluorquinolonic der