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