5-[4-[4-(5-CYANO-1H-INDOL-3YL)BUTYL]-1-PIPERAZINYL]-2-BENZOFURAN CARBOXAMIDE SALT AND ITS PROCESS THEREOF

摘要

The present invention relates to formic acid salt as well as its crystalline form of antidepressant drug i.e., 5-[4-[4-(5-cyano-lH-indol-3-yl)butyl]-l-piperazinyl]-2-benzofurancarboxamide compound of formula-1, which is useful in the preparation of 5-[4-[4-(5-cyano-lH-indol-3-yl)butyl]-l-piperazinyl]-2-benzofuran carboxamide hydrochloride compound of formula-la and process for its preparation.