Methyl 2-(difluoromethyl)-5-methyl-6-nitropyridine-3-acetate
5-(Aminomethyl)-2-(difluoromethyl)-3-methylpyridine-4-carboxaldehyde
Methyl 6-(difluoromethyl)-3-methyl-4-nitropyridine-2-acetate
4-(Aminomethyl)-3-(difluoromethyl)-6-methylpyridine-2-carboxaldehyde