3-(Difluoromethyl)-4,5-diiodopyridine-2-sulfonyl chloride
5-Bromo-6-(difluoromethyl)-2,3-dimethoxypyridine
4-Bromo-5-(difluoromethyl)-2,3-dimethoxypyridine
2-(Difluoromethyl)-3,6-diiodopyridine-5-sulfonyl chloride
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