5-Bromo-2-(difluoromethyl)-4-hydroxypyridine-3-sulfonamide
3-Bromo-5-cyano-2-(difluoromethyl)-6-fluoropyridine
3-Bromo-4-(difluoromethyl)-5-iodo-2-methoxypyridine
2-Bromo-5-cyano-3-(difluoromethyl)-6-fluoropyridine
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