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