3-Bromo-2-(difluoromethyl)-5-hydroxypyridine-4-sulfonyl chloride
5-Bromo-3-(difluoromethyl)-2-fluoro-4-methylpyridine
2-(Aminomethyl)-3-bromo-6-(difluoromethyl)-5-fluoropyridine
2-Bromo-5-(difluoromethyl)-4-hydroxypyridine-3-sulfonyl chloride
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