Ethyl 3-(difluoromethyl)-6-fluoro-4-(trifluoromethoxy)pyridine-2-carboxylate
3-(Fluoromethyl)-6-hydroxy-4-(trifluoromethoxy)pyridine-2-acetic acid
3-(Difluoromethyl)-5-fluoro-2-(trifluoromethoxy)pyridine-6-acetonitrile
5-(Fluoromethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine-4-acetic acid