The invention relates to novel compound of formula (IV), which is an organic acid salt of N-[(2′-cyanobiphenyl-4-yl)methyl]-(L)-valine ester. This compound is an useful intermediate for process of preparation of Valsartan of formula (I), chemically known as (S)-N-(1-Carboxy-2-methylprop-1-yl)-N-pentanoyl-N-[2′-(1H-terazol-5-yl)biphenyl-4-ylmethyl]amine. This invention also relates to a process for preparing Valsartan using novel intermediate of formula (IV).
本发明涉及一种式为(IV)的新化合物,它是N-[(2'-
氰基
联苯-4-基)甲基]-(L)-缬
氨酸酯的有机酸盐。该化合物是制备式为(I)的
缬沙坦的有用中间体,
化学名称为(S)-N-(1-羧基-2-甲基丙基)-N-戊酰-N-[2'-(
1H-四唑-5-基)
联苯-4-基甲基]胺。本发明还涉及使用式为(IV)的新中间体制备
缬沙坦的方法。