6,8-Difluoro-1-iodo-3-methylimidazo[1,5-a]pyridine
6-(4-Fluorophenyl)-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
6-(4-Fluorophenyl)-2-oxo-4-phenyl-1,2-dihydropyridine-3-carbonitrile
6-(4-Chlorophenyl)-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile