5-Bromo-3-cyano-4-(difluoromethyl)pyridine-2-carboxaldehyde
3-Bromo-2-(difluoromethyl)-6-hydroxypyridine-4-sulfonyl chloride
3-Bromo-5-cyano-2-(difluoromethyl)pyridine-6-carboxaldehyde
3-Bromo-2-(difluoromethyl)-4-hydroxypyridine-5-sulfonyl chloride
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