- A PROCESS FOR PREPARATION OF 2-BENZOFURANCARBOXAMIDE, 5-[4-[4-(5CYANO-1H-INDOL-3-YL)BUTYL]-1-PIPERAZINYL] FREE BASE AND ITS HYDROCHLORIDE SALT
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The present invention describes an advantageous, economically viable process for preparing 5-[4-[4-(5-Cyanoindole-3-yl)butyl]Piperazine-1-yl]benzofuran-2-carboxamide free base (Formula-I) and its hydrochloride salt. The instant invention also describes process for preparing 2-benzofurancarboxamide, 5-[4-[4-(5cyano-1H-indol-3-yl)butyl]-1- piperazinyl]intermediates.
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Page/Page column 19
(2016/09/22)
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- IMPROVED PROCESS FOR PREPARING BENZOFURAN-2-CARBOXAMIDE DERIVATIVES
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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.
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Page/Page column 37
(2014/01/18)
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