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