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