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