6-Cyano-4-fluoro-2-nitro-3-(trifluoromethoxy)pyridine
2-Cyano-4-fluoro-5-nitro-3-(trifluoromethoxy)pyridine
3-Chloro-2-iodo-5-(trifluoromethoxy)pyridine-6-sulfonamide
3-Cyano-2-(difluoromethyl)-5-fluoro-4-(trifluoromethoxy)pyridine
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