Disclosed are methods for preparation of two pharmaceutical intermediates (I, II) of Aliskiren, said intermediates are obtained by reacting compound of formula I or II and tribromophosphorus oxide. The method replaces the method in the prior art which is using column chromatopraphy to produce the compounds I and II, and overcomes the defect that the method in the prior art hardly carry out in a large-scale industrial production. The product can be purified by recrystallization or vacuum distillation, and the chemical purity of the product is good.
本发明公开了制备Aliskiren的两种药物中间体(I, II)的方法,所述中间体是通过将化合物I或II和
三溴化磷氧反应获得的。该方法替代了先前技术中使用色谱柱制备化合物I和II的方法,并克服了先前技术中该方法难以进行大规模工业生产的缺陷。该产品可以通过重结晶或真空蒸馏进行纯化,产品的
化学纯度良好。