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