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