Processes for preparing pharmaceutical grade melphalans from industrial grade reactants
申请人:Zhou Chen
公开号:US20120190887A1
公开(公告)日:2012-07-26
A four stage inexpensive method of preparing pharmaceutical grade Melphalans of Melphalan 2-HCl, Melphalan HCl and Melphalan by:
reacting N- phthaloyl-4-[bis(2-hydroxyethyl)amino]-phenylalanine ethyl ester with phosphorous oxychloride, reacting the chlorinated product with HCl and alkali hydroxide and purifying, and lyophilizing to obtain Melphalans.
一种制备药用级甲氨蝶呤(Melphalan 2-HCl、Melphalan HCl和Melphalan)的廉价四阶段方法:通过将N-邻苯二甲酰-4-[双(2-羟乙基)氨基]-苯丙氨酸乙酯与氯化磷酰反应,将氯化产物与盐酸和碱性氢氧化物反应并纯化,然后冻干以获得甲氨蝶呤。