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