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