3-(Trifluoromethyl)-2-pyridinesulfonamide
4-(Difluoromethyl)-2-fluoro-3-nitropyridine-6-sulfonyl chloride
3-(Difluoromethyl)-4-fluoro-6-nitropyridine-2-sulfonyl chloride
3-(Difluoromethyl)-2-fluoro-6-nitropyridine-4-sulfonyl chloride
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