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