Convenient synthesis of 1-aryl-9H-β-carboline-3-carbaldehydes and their transformation into dihydropyrimidinone derivatives by Biginelli reaction
作者:Péter Ábrányi-Balogh、András Dancsó、Dávid Frigyes、Balázs Volk、György Keglevich、Mátyás Milen
DOI:10.1016/j.tet.2014.06.073
日期:2014.9
In the present work, a practical synthesis of 1-aryl-β-carboline-3-carbaldehydes as versatile building blocks and their application in Biginelli reaction is reported. The starting material of the four-step synthesis is racemic tryptophan methyl ester. The procedure involves a Pictet–Spengler cyclization, a dehydrogenation, an ester reduction, and an alcohol oxidation step. The β-carboline-3-carbaldehydes
在目前的工作中,报道了一种实用的1-芳基-β-咔啉-3-甲醛的合成方法,作为通用的结构单元及其在Biginelli反应中的应用。四步合成的起始原料是外消旋色氨酸甲酯。该过程涉及Pictet-Spengler环化,脱氢,酯还原和醇氧化步骤。使用Biginelli反应,将β-咔啉-3-甲醛进一步转化为在位置3上具有药理学意义的二氢嘧啶环的衍生物。