2-(Bromomethyl)-5-cyano-6-(difluoromethyl)-3-hydroxypyridine
2-(Bromomethyl)-6-cyano-3-(difluoromethyl)-5-hydroxypyridine
5-(Difluoromethyl)-2-fluoro-3-hydroxypyridine-4-carbonyl chloride
4-(Difluoromethyl)-6-hydroxy-3-iodopyridine-2-acetic acid
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