Methyl 3-amino-4-(difluoromethyl)-6-nitropyridine-2-acetate
5-Amino-4-(bromomethyl)-3-(difluoromethyl)-2-(trifluoromethyl)pyridine
Methyl 3-amino-2-(difluoromethyl)-4-nitropyridine-6-acetate
Ethyl 3-amino-6-(aminomethyl)-4-(difluoromethyl)pyridine-2-acetate