2-Fluoro-6-hydroxy-3-nitro-5-(trifluoromethoxy)pyridine
3-Cyano-4-fluoro-2-(trifluoromethoxy)pyridine-6-acetonitrile
3-Fluoro-6-hydroxy-2-methyl-5-(trifluoromethoxy)pyridine
6-Cyano-3-fluoro-2-(trifluoromethoxy)pyridine-4-acetonitrile
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