作者:Bin He、Hao Song、Yu Du、Yong Qin
DOI:10.1021/jo802216z
日期:2009.1.2
Total synthesis of potent anti-MDR indole alkaloids (−)-ardeemin and its N-acyl analogues has been accomplished from l-tryptophan with about 2% overall yield in 20 steps. The key step depended on the newly developed three-step one-pot cascade reaction of 7 with diazoester 8 via intermolecular cyclopropanation, ring opening, and ring closure to assemble the chiral 3-substituted hexahydropyrrolo[2,3-b]indole
有效的抗MDR吲哚生物碱(-)-ardeemin及其N-酰基类似物的全合成已由L-色氨酸以20步的总产率完成了约2%。关键步骤取决于分子间环丙烷化,开环和闭环,使7与重氮酸酯8进行三步一锅级联反应,以组装手性3-取代的六氢吡咯并[2,3-b]吲哚4a。