Ethyl 4-amino-2-(difluoromethyl)-3-(trifluoromethyl)pyridine-5-carboxylate
Ethyl 3-amino-6-(chloromethyl)-4-(difluoromethyl)pyridine-2-acetate
3-Amino-6-(difluoromethyl)-2-(trifluoromethyl)pyridine-4-carboxylic acid
Ethyl 4-amino-5-(chloromethyl)-3-(difluoromethyl)pyridine-2-acetate