Synthesis of Tetrahydroisoquinocarbazoles via C-2 Alkylation of Indoles with 2-Alkoxycyclopropanoate Esters

被引:24
作者
Bajtos, Barbora [1 ]
Pagenkopf, Brian L. [1 ]
机构
[1] Univ Western Ontario, Dept Chem, London, ON N6A 5B7, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
FRIEDEL-CRAFTS ALKYLATIONS; SAMARIUM(II) IODIDE; ANTIARRHYTHMIC DRUGS; ORGANIC-CHEMISTRY; CYCLIZATION; ARYLATION; RS-2135; AGENT; SMI2; DIIODOSAMARIUM;
D O I
10.1021/ol900937f
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A concise method for the synthesis of several tetrahydroisoquinocarbazole derivatives is reported, where the core is prepared in six steps from tryptophol in 51% overall yield. The pentacyclic analogs are constructed via a dipolar C-2 alkylation of a 3-substituted Indole with a 2-alkoxycyclopropanoate ester and a SmBr2-HMPA mediated ketyl-alkene ring closure.
引用
收藏
页码:2780 / 2783
页数:4
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