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