ISOMERS OF 1-AZABICYCLO¬2.2.2OCT-3-YL 1,4-DIHYDRO-2,6-DIMETHYL-4-(3-NITROPHENYL)-5-NITROPYRIDINE-3-CARBOXYLATE

摘要

The four stereoisomers are disclosed having the formula:in which the asymmetric centers a and b are the same or different. Thecompounds are derived from the (+) and (-) alcohols and the (+) and (-)dihydropyridines and have either the absolute R or S configuration. Alsodisclosed are pharmaceutical compositions comprising an effective amount ofthe compounds in a pharmaceutically acceptable carrier and methods forproducing cardiotonic activity using the compositions.