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