1,2,3,4-Tetrahydro-5-acetyl-6-methyl-4-(3-nitrophenyl)-2-thioxo-3-pyridinecarbonitrile 3-Pyridinecarbonitrile, 1,2,3,4-tetrahydro-5-acetyl-6-methyl-4-(3-nitrophenyl)-2-thioxo- 6-Methyl-4-(3-nitrophenyl)-5-acetyl-3-cyano-1,4-dihydropyridine-2(3H)-thione US4202150