作者:M.-Lluïsa Bennasar、Ester Zulaica、Daniel Solé、Sandra Alonso
DOI:10.1016/j.tet.2006.11.043
日期:2007.1
The azocino[4,3-b]indole system, tricyclic substructure of the indole alkaloids apparicine and ervaticine, is efficiently assembled by ring-closing metathesis of 2-allyl-3-(allylaminomethyl)indoles. The metathesis sites are introduced into the indole nucleus by reductive amination of a 3-formyl derivative with allylamine, followed by alpha-lithiation with subsequent electrophilic trapping with acrolein. (c) 2006 Elsevier Ltd. All rights reserved.