Enantioselective Construction of Pyrroloindolines Catalyzed by Chiral Phosphoric Acids: Total Synthesis of (−)-Debromoflustramine B
作者:Zuhui Zhang、Jon C. Antilla
DOI:10.1002/anie.201203553
日期:2012.11.19
by a chiral phosphoric acid. Starting from readily available tryptamine, both Michael products and amination products were obtained in high yields and enantioselectivities. The significance of this study was further demonstrated by the total synthesis of (−)‐debromoflustramine B.
有用的酸:通过手性磷酸的催化作用,可以实现与相邻的季碳和叔碳中心形成吡咯并二氢吲哚的不对称反应。从易于获得的色胺开始,迈克尔产品和胺化产品均以高收率和对映选择性获得。(-)-去溴氟stramine B的全合成进一步证明了这项研究的重要性。