Ethyl 3-(difluoromethyl)-6-hydroxy-2-(trifluoromethoxy)pyridine-4-acetate
Ethyl 5-(difluoromethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine-3-acetate
3-(Aminomethyl)-6-iodo-4-(trifluoromethoxy)pyridine-2-acetic acid
Ethyl 4-(difluoromethyl)-5-hydroxy-2-(trifluoromethoxy)pyridine-3-acetate