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