Ethyl 2,3-difluoro-5-(difluoromethyl)pyridine-4-acetate
3,5-Difluoro-4-(difluoromethyl)pyridine-2-sulfonyl chloride
Methyl 3,5-difluoro-4-(difluoromethyl)pyridine-2-acetate
4,5-Difluoro-2-(difluoromethyl)pyridine-3-sulfonyl chloride
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