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