Synthesis of 2,5-Disubstituted 6-Azaindoles from Substituted Aziridines via Intramolecular Cyclization
作者:Hogyu Lee、Jun Hee Kim、Won Koo Lee、Jae-Hoon Jung、Hyun-Joon Ha
DOI:10.1021/ol301187s
日期:2012.6.15
A new and efficient preparation of pharmacologically and biologically important 2,5-disubstituted 6-azaindoles was achieved from cyclizations of aziridin-2-yl dipropargylic alcohols as adducts of two propargyl groups to ethyl 1-benzylaziridine-2-carboxylate. The sequential cyclizations include pyrrole formation and a novel base-catalyzed intramolecular acetylenic Schmidt reaction.
从作为两个炔丙基与1-苄基氮丙啶-2-羧酸乙酯的加合物的叠氮基-2-基二炔丙基醇的环化反应,获得了一种新的,有效的药理和生物学上重要的2,5-二取代的6-氮杂吲哚的制备方法。顺序环化包括吡咯的形成和新型碱催化的分子内炔属施密特反应。