2-Hydroxy-3-iodo-4-(trifluoromethoxy)pyridine-5-sulfonyl chloride
5-Fluoro-2-hydroxy-4-(trifluoromethoxy)pyridine-3-acetonitrile
5-Fluoro-2-hydroxy-3-methoxy-4-(trifluoromethoxy)pyridine
4-Fluoro-5-hydroxy-2-(trifluoromethoxy)pyridine-3-acetonitrile
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