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