Provided herein are novel, commercially viable and industrially advantageous processes for the preparation of benzofuran-2-carboxamide derivatives and their intermediates, or a pharmaceutically acceptable salt thereof, in high yield and purity. Provided particularly herein are novel, commercially viable and industrially advantageous processes for the preparation of vilazodone or a pharmaceutically acceptable salt thereof in high yield and purity. Provided also herein is an improved and commercially viable process for the preparation of 3-(4-hydroxybutyl)-1H-indole-5-carbonitrile, in high yield and purity, using novel intermediate compound 3-(4-hydroxybutyryl)-1H-indole-5-carbonitrile.
本文提供了一种新颖、商业可行和工业优越的过程,用于制备
苯并呋喃-2-羧酰胺衍
生物及其中间体或其药学上可接受的盐,收率和纯度高。特别提供了一种新颖、商业可行和工业优越的过程,用于制备
维拉唑酮或其药学上可接受的盐,收率和纯度高。本文还提供了一种改进的、商业可行的过程,用于使用新颖的中间体化合物3-(
4-羟基丁酰基)-1H-
吲哚-5-碳腈,高收率和高纯度地制备3-(
4-羟基丁基)-1H-
吲哚-5-碳腈。