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