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