Abstract: Isothiazolones having the general structure ##STR1## where A is a monocyclic or bicyclic ring which may contain up to 3 heteroatoms selected from O, S, and N; R.sup.1 and R.sup.2 are substituent groups such as alkyl, alkoxy, hydroxy, nitro, cyano, amino, and carboxy; and R.sup.5 is alkyl, cycloalkyl, phenyl, and Het. The isothiazolones are useful as anti-retroviral agents, anti-inflammatory agents, and anti-atherosclerotic agents.

Abstract: Novel naphthyridine-, quinoline- and benzoxazinecarboxylic acids as antibacterial agents are described as well as methods for their manufacture, formulation, and use in treating bacterial infections including the description of certain novel intermediates used in the manufacture of the antibacterial agents.

Abstract: A novel series of quinoline-, naphthyridine- and benzoxazine-carboxylic acids useful as antibacterial agents is described. Novel methods for preparing the compounds as well as novel intermediates are also described as are methods for their formulation and the use thereof in treating bacterial infections.

Abstract: Novel 7-piperazine derivatives of 5-amino- and 5-hydroxy-1-cyclopropyl-1,4-dihydro-4-oxoquinoline-3-carboxylic acids as antibacterial agents are described as well as methods for their manufacture, formulation, and use in treating bacterial infections.

Abstract: The novel series of quinoline-, naphthyridine- and benzoxazine-carboxylic acids useful as antibacterial agents is described. Novel methods for preparing the compounds as well as novel intermediates are also described as are methods for their formulation and the use thereof in treating bacterial infections.

Abstract: The novel (S)-7-(3-amino-1-pyrrolidinyl)-1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-1, 8-n phthyridine-3-carboxylic acid, lower alkyl esters and pharmaceutically acceptable salts thereof are described as well as a method for its manufacture, formulation, and use in treating bacterial infections.

Abstract: Novel quinolone and naphthyridine antibacterial agents are herein described having improved in vivo activity both orally and subcutaneously where the 7-side chain of such compounds contain an .alpha.-amino acid; also described are its corresponding optical isomers, methods of preparation as well as compositions and methods of treating infections diseases.

Abstract: Disubstituted 7-pyrrolidinoquinoline- and -napthylridine-3-carboxylic acids as antibacterial agents are described as well as methods for their manufacture, formulation, and use in treating bacterial infections.

Abstract: Novel naphthyridine-, quinoline- and benzoxazinecarboxylic acids as antibacterial agents are described as well as methods for their manufacture, formulation, and use in treating bacterial infections including the description of certain novel intermediates used in the manufacture of the antibacterial agents.

Abstract: Novel, orally active antibacterial agents are described and characterized as 7-[[3-(aminomethyl)-3-alkyl]-1-pyrrolidinyl]-6-fluoro-1,4-dihydro-4-oxo -3-quinoline carboxylic acids or corresponding 1,8-naphthyridine derivatives as well as methods for their manufacture.

Abstract: Disubstituted 7-pyrrolidinoquinoline- and -naphthyridine-3-carboxylic acids as antibacterial agents are described as well as methods for their manufacture, formulation, and use in treating bacterial infections.

Abstract: Novel 7-piperazino and 7-N-methylpiperazino derivatives of 5-amino-1-cyclopropyl-6,8-dihydro-1,4-dihydro-4-oxoquinoline-3-carboxylic acids as antibacterial agents are described as well as methods for their manaufacture, formulation, and use in treating bacterial infections.

Abstract: 1-cyclopropyl-6,7-dihalo-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acids and their esters, which are useful as intermediates for the preparation of compounds which are useful as anti-bacterial agents.

Abstract: Novel 7-fluoro-8-heterocyclyl-5-oxo-5H-thiazolo (3,2-a)-naphthyridine- and quinoline- 4-carboxylic acids as antibacterial agents are described as well as methods for their manufacture, formulation, and use in treating bacterial infections.

Abstract: Certain substituted 1,4-dihydro-4-oxo-7-(3-thiazolidinyl or 4-thiomorpholinyl)-1,8-naphthyridine-3-carboxylic acids and derivatives are disclosed as antibacterial agents.

Abstract: Novel organic amide compounds which are N-[2-[(acylaminoacylamino or aminoacylamino)phenyl]-4-hydroxy-5-pyrimidinylcarbonyl]cephalosporin compounds having broad spectrum antibacterial utility are provided by (a) reacting the free amino acid of the appropriate cephalosporin or the acid salt or silylated derivative or complex thereof with a reactive derivative of the corresponding N-2-[(acylaminoacylamino or aminoacylamino)phenyl]-4-hydroxy-5-pyrimidine carboxylic acid or (b) reacting the free amino acid 7-aminocephalosporanic acid or a related compound or the acid salt or silylated derivative thereof with a reactive derivative of the corresponding D-N-[2-[(acylaminoacylamino or aminoacylamino)phenyl]-4-hydroxy-5-pyrimidinylcarbonyl]-2-substituted glycine. Pharmaceutical compositions containing said compounds and methods for treating infections using said compositions are also disclosed.