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