2-Cyano-4,5-dibromo-3-(difluoromethyl)pyridine
3-(Difluoromethyl)-6-nitro-2-(trifluoromethyl)pyridine
4-Cyano-2,6-dibromo-3-(difluoromethyl)pyridine
4-(Difluoromethyl)-5-nitro-2-(trifluoromethyl)pyridine
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