2-Amino-3-(aminomethyl)-5-(difluoromethyl)-4-nitropyridine
Methyl 3-amino-2-(bromomethyl)-6-(difluoromethyl)pyridine-5-carboxylate
3-Amino-2-(difluoromethyl)-6-methylpyridine-4-sulfonamide
Methyl 3-amino-5-(bromomethyl)-2-(difluoromethyl)pyridine-4-carboxylate