Methyl 2-(difluoromethyl)-6-hydroxy-4-(trifluoromethoxy)pyridine-3-carboxylate
4-Hydroxy-2-iodo-5-(trifluoromethoxy)pyridine-3-carbonyl chloride
3-Hydroxy-6-iodo-2-(trifluoromethoxy)pyridine-5-sulfonyl chloride
5-Hydroxy-3-iodo-2-(trifluoromethoxy)pyridine-4-carbonyl chloride