4-Cyano-2-(difluoromethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine
5-Chloro-4-hydroxy-2-(trifluoromethoxy)pyridine-3-methanol
3-Chloro-4-hydroxy-5-(trifluoromethoxy)pyridine-2-methanol
5-Cyano-3-(difluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine
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