3-(Difluoromethyl)-2-methyl-4-nitropyridine-5-carboxylic acid
Ethyl 4-(difluoromethyl)-2-methoxy-3-(trifluoromethyl)pyridine-5-carboxylate
Ethyl 3-(difluoromethyl)-5-methoxy-4-nitropyridine-2-carboxylate
Ethyl 6-(difluoromethyl)-4-methoxy-3-(trifluoromethyl)pyridine-2-carboxylate