is the base structure of several biologically active natural and unnatural compounds. Herein, we report the first total synthesis of trigonostemine G, which is a newly isolated natural β-carboline alkaloid from the twigs of Trigonostemon filipes. Synthesis of two structurally close derivatives of trigonostemine G is also reported. Key step of the syntheses involves a nucleophilic addition of 5-[tert-butyl(dimethyl)
摘要 β-咔啉核是几种具有
生物活性的天然和非天然化合物的基本结构。在本文中,我们报道了三角
果糖胺G的第一个全合成,这是一种新的天然植物,由三角龙舌果的细枝中分离得到。还报道了三
糖精G的两种结构紧密的衍
生物的合成。合成的关键步骤涉及将5-[叔丁基(二甲基甲
硅烷基)氧基] -1 H-
吲哚亲核加成至1-甲酰基-β-咔啉构件上。