[EN] A METHOD OF PURIFICATION OF LORAZEPAM<br/>[FR] METHODE DE PURIFICATION DE LORAZEPAM
申请人:ZENTIVA AS
公开号:WO2005054211A1
公开(公告)日:2005-06-16
A new method of purification of Lorazepam is disclosed that consists in removing products of synthesis, decomposition products, water or other solvent that forms a solvate with Lorazepam, by crystallization or stirring in an organic solvent of the ether, ester or ketone type. Lorazepam prepared via this method can be utilized in the pharmaceutical industry for the manufacture of pharmaceuticals.
本发明揭示了一种新的洛拉西泮纯化方法,其中通过在醚、酯或酮类有机溶剂中结晶或搅拌来去除合成产物、分解产物、水或与洛拉西泮形成溶剂化合物的其他溶剂。通过这种方法制备的洛拉西泮可用于制药工业中的药物制造。