3-Iodo-2-methoxy-4-(trifluoromethoxy)pyridine-5-sulfonyl chloride
4-(Difluoromethyl)-6-hydroxy-2-methyl-3-(trifluoromethoxy)pyridine
6-Iodo-2-methoxy-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
4-(Difluoromethyl)-2-hydroxy-5-methyl-3-(trifluoromethoxy)pyridine