2-Bromo-3-(difluoromethyl)pyridine-5-sulfonyl chloride
5-Bromo-2-(difluoromethyl)pyridine-4-carbonyl chloride
4-(Difluoromethyl)-2-nitropyridine-6-acetic acid
4-Bromo-3-(difluoromethyl)pyridine-5-carbonyl chloride
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