2,3-Dibromo-5-(difluoromethyl)pyridine-4-sulfonyl chloride
2-(Difluoromethyl)-4-(trifluoromethyl)pyridine-3-sulfonyl chloride
4-Cyano-2,6-dichloro-3-(difluoromethyl)pyridine
2-Cyano-3,6-dichloro-5-(difluoromethyl)pyridine
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