Methyl 2-methoxy-6-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-3-carboxylate
Methyl 2-methoxy-6-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-4-acetate
Methyl 2-methoxy-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-5-acetate
4-Methoxy-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-5-acetic acid