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