4-(Aminomethyl)-2-(difluoromethyl)-3-methylpyridine-6-carboxaldehyde
5-(Aminomethyl)-3-(difluoromethyl)-2-methylpyridine-4-carboxaldehyde
4-(Difluoromethyl)-2-methyl-5-nitropyridine-3-acetonitrile
5-(Aminomethyl)-3-(difluoromethyl)-4-methylpyridine-2-carboxaldehyde