Ring-chain tautomerism in 2,2-bis(2-thienyl)tetrahydrofurans: preparation of [butene-2H5]-tiagabine
作者:John M. Herbert、Trevor W. Mathers
DOI:10.1002/jlcr.1787
日期:2010.7
A concise preparation of [butene-2H5]-tiagabine hydrochloride starting from [2H6]-γ-butyrolactone is described. It was necessary to ring-open the labeled γ-butyrolactone precursor before the addition of 2-thienyllithium to avoid cyclisation of the intermediate to a 2,2-bis(2-thienyl)tetrahydrofuran. Copyright © 2010 John Wiley & Sons, Ltd.
描述了从 [2H6]-γ-丁内酯开始的 [丁烯-2H5]-tiagabine 盐酸盐的简明制备。有必要在添加 2-噻吩基锂之前将标记的 γ-丁内酯前体开环,以避免中间体环化为 2,2-双(2-噻吩基)四氢呋喃。版权所有 © 2010 John Wiley & Sons, Ltd.