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