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