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