3-Cyano-5-hydroxy-2-methoxy-4-(trifluoromethoxy)pyridine
4-Chloro-2-methoxy-3-(trifluoromethoxy)pyridine-5-sulfonyl chloride
5-Cyano-4-hydroxy-3-methoxy-2-(trifluoromethoxy)pyridine
5-Chloro-3-methoxy-4-(trifluoromethoxy)pyridine-2-sulfonyl chloride
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