3-(Difluoromethyl)-6-hydroxy-2-(trifluoromethoxy)pyridine-5-acetonitrile
5-(Difluoromethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine-6-acetonitrile
3-Hydroxy-4-iodo-2-(trifluoromethoxy)pyridine-6-acetic acid
Ethyl 2-hydroxy-4-iodo-5-(trifluoromethoxy)pyridine-3-acetate