Ethyl 2-(difluoromethyl)-6-methyl-4-nitropyridine-3-carboxylate
Ethyl 2-(difluoromethyl)-3-methoxy-5-(trifluoromethyl)pyridine-6-carboxylate
Ethyl 2-(difluoromethyl)-3-methyl-5-nitropyridine-4-carboxylate
Methyl 3-(difluoromethyl)-2-methoxy-4-(trifluoromethyl)pyridine-5-acetate