2,3-Difluoro-4-(difluoromethyl)pyridine-6-sulfonyl chloride
4-(Difluoromethyl)-3,5-dimethoxypyridine-2-sulfonyl chloride
4-(Difluoromethyl)-2,5-dimethoxypyridine-3-sulfonyl chloride
6-(Difluoromethyl)-2,3-dimethoxypyridine-5-sulfonyl chloride
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