Chester J. Opalka

3-Amino-5-(pyridinyl)-2(1H)-pyridinones

5-(Pyridinyl)-2(1H)-pyridinones

Production of imidazo[4,5-b]pyridin-2-ones or thiones

Compositions and their preparation

1-Ethyl-1,4-dihydro-4-oxo-7-(pyridinyl)-3-quinolinecarboxylic acids. I. Synthesis of 3- and 4-(3-aminophenyl)pyridine intermediates

1,2-Dihydro-2-oxo-5-(pyridinyl)nicotinamides

5-(Pyridinyl)-6-(lower-alkyl)-2(1H)-pyridinones, 1,2-dihydro-2-oxo-5-(pyridinyl)-6-(lower-alkyl)nicotinic acids and lower-alkyl esters thereof, and cardiotonic use thereof

1-Ethyl-1,4-dihydro-4-oxo-7-(pyridinyl)-3-quinolinecarboxylic acids. II. Synthesis

Pyridinyl-2(1h)-pyridinone und deren herstellung

3-Amino-5-(substituted)-2 (1H) pyridinones and 3-cyano compounds useful as cardiotonics and preparation thereof