作者:Patrick D. Bailey、Keith M. Morgan
DOI:10.1039/b005695m
日期:——
A new synthesis of the indole alkaloid (−)-suaveoline from L-tryptophan is reported (overall yield ca. 14%). Key synthetic steps include a high yielding cis-specific Pictet–Spengler reaction, a one-pot Horner–Wadsworth–Emmons and alkylation procedure, a vinylogous Thorpe cyclisation and the direct formation of a 3,4,5-trisubstituted pyridine from a 1,5-dinitrile. The direct conversion of ajmaline to
的新综合 吲哚生物碱 (-)-suaveoline来自 L-色氨酸据报道(总收率约为14%)。关键的合成步骤包括高产量的顺式Pictet-Spengler反应,一锅Horner-Wadsworth-Emmons和烷基化 程序,乙烯基索普 环化 并直接形成3,4,5-三取代 吡啶从1,5-二苯胺。直接转换阿玛琳 还描述了半合成的suaveoline。