3-(Difluoromethyl)-2-hydroxy-5-(trifluoromethoxy)pyridine-4-acetic acid
3-Hydroxy-5-iodo-4-(trifluoromethoxy)pyridine-2-sulfonamide
4-Hydroxy-3-methoxy-6-nitro-2-(trifluoromethoxy)pyridine
6-(Difluoromethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine-4-acetic acid