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