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