A practical syntheticroute of belinostat is reported. Belinostat was obtained via a five-step process starting from benzaldehyde and including addition reaction with sodium bisulfite, sulfochlorination with chlorosulfonic acid, sulfonamidation with aniline, Knoevenagel condensation, and the final amidation with hydroxylamine. Key to the strategy is the preparation of 3-formylbenzenesulfonyl chloride
报道了贝利司他的实用合成路线。通过从苯甲醛开始的五步过程获得Belinostat,该过程包括与亚硫酸氢钠的加成反应,与氯磺酸的磺氯化,与苯胺的磺酰胺化,Knoevenagel缩合和与羟胺的最终酰胺化。该策略的关键是使用经济实用的方法制备3-甲酰基苯磺酰氯。该路线的主要优势包括廉价的原料和可接受的总产率。进行了放大实验,以提供33%的总收率的169 g belinostat,其纯度为99.6%。