4-Cyano-2-(fluoromethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine
3-Cyano-2-hydroxy-5-methyl-6-(trifluoromethoxy)pyridine
5-Cyano-3-(fluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine
6-Cyano-4-methyl-2-nitro-3-(trifluoromethoxy)pyridine
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