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