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