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