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