The present invention describes a novel process for the preparation of Ethacrynate sodium. The process involves the treatment of Ethacrynic acid with equimolar amount of sodium salt of alkyl carboxylic acid in the presence of organic solvents. The product obtained by the process is substantially pure form (purity greater than 99%) and limits known impurities below 0.1% w/w. The process also relates to a crystalline form of Ethacrynate sodium and a process for its preparation. The process is efficient and cost effective method for the commercial scale production of substantially pure stable form of Ethacrynate sodium.
本发明描述了一种用于制备乙噁酸
钠的新型工艺。该工艺涉及在有机溶剂存在下,将乙噁酸与等摩尔量的烷基
羧酸钠盐进行处理。该工艺得到的产品为基本纯净形式(纯度大于99%),并将已知杂质限制在0.1% w/w以下。该工艺还涉及乙噁酸
钠的结晶形式以及其制备工艺。该工艺是一种高效且成本效益的方法,用于大规模生产基本纯净稳定形式的乙噁酸
钠。