3-Cyano-2-(trifluoromethoxy)pyridine-6-methanol
6-Cyano-2-(trifluoromethoxy)pyridine-3-methanol
4-Cyano-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine
4-Cyano-2-(difluoromethyl)-6-(trifluoromethoxy)pyridine
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