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