3-Bromo-6-(difluoromethyl)-2-methoxypyridine-5-sulfonyl chloride
5-Bromo-2-(difluoromethyl)-4-methoxypyridine-3-sulfonyl chloride
2-Bromo-5-(difluoromethyl)-3-methoxy-6-methylpyridine
5-Bromo-2-(difluoromethyl)-3-methoxypyridine-4-sulfonyl chloride
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