3-Amino-2,5-difluoro-4-(difluoromethyl)pyridine
3-(Difluoromethyl)-2-fluoropyridine-5-sulfonyl chloride
2,4-Dichloro-3-(difluoromethyl)-5-fluoropyridine
2-(Difluoromethyl)-6-fluoropyridine-3-sulfonyl chloride
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