[EN] PREPARATION OF BENZOFURANS AND USE THEREOF AS SYNTHETIC INTERMEDIATES [FR] PRÉPARATION DE BENZOFURANES ET LEUR UTILISATION EN TANT QU'INTERMÉDIAIRES DE SYNTHÈSE
[EN] PREPARATION OF BENZOFURANS AND USE THEREOF AS SYNTHETIC INTERMEDIATES [FR] PRÉPARATION DE BENZOFURANES ET LEUR UTILISATION EN TANT QU'INTERMÉDIAIRES DE SYNTHÈSE
Pharmaceutical compositions and methods of producing coronary
申请人:Smith Kline
公开号:US03975537A1
公开(公告)日:1976-08-17
Pharmaceutical compositions and methods of producing coronary vasodilation by administering substituted benzofurans, for example 2-n-butyl-3-[4' -(2-hydroxy-3-isopropylamino)propoxybenzoyl] benzofuran.
Certain 4-(3-azacycloalkoxy or azacycloalkylmethoxy)benzoylbenzofurans
申请人:SmithKline Corporation
公开号:US03983245A1
公开(公告)日:1976-09-28
The compounds of this invention are substituted benzofurans and benzothiophenes having pharmacological activity. In particular, these compounds have coronary vasodilator activity and are useful in the treatment of angina pectoris.
PREPARATION OF BENZOFURANS AND USE THEREOF AS SYNTHETIC INTERMEDIATES
申请人:Marom Ehud
公开号:US20130046103A1
公开(公告)日:2013-02-21
The present invention provides several synthetic methods for preparing N-(2-butylbenzofuran-5-yl)-N-(methylsulfonyl)methanesulfonamide, a compound of formula (3), an intermediate in the preparation of Dronedarone. The present invention further provides a process for preparing Dronedarone, comprising the steps of converting 2-butyl-5-bis(methanesulfon)-amidobenzofuran of formula (3) to Dronedarone, wherein the 2-butyl-5-bis(methanesulfon)-amidobenzofuran of formula (3) is prepared by the processes of the present invention.
CuI catalyzed domino coupling–cyclization of 2-iodo-phenols and 1-alkynes to the synthesis of 2-substituted benzo[b]furans/furo-pyridines
作者:Ze-Pin Chen、Yi Zhou、Meng-Zhu Shui、Feng Liu
DOI:10.1016/j.tetlet.2018.11.076
日期:2019.1
CuI/proline-catalyzed coupling reaction of 2-iodo-phenols with terminal alkynes and the following cyclization process is carried out successively in DMSO at 80 degrees C. Under this tandem process, 2-substituted benzo[b]furans/furo-pyridines were synthesized in good to excellent yields with a great diversity. (C) 2018 Elsevier Ltd. All rights reserved.
Intramolecular [2 + 2] cycloadditions of ketenes to carbonyl groups. A novel synthesis of substituted benzofurans
作者:William T. Brady、Yun Seng F. Giang、Alan P. Marchand、An Hsiang Wu