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