作者:Xavier Guinchard、Yannick Vallée、Jean-Noël Denis
DOI:10.1021/ol701626m
日期:2007.9.1
Total syntheses of six brominated marine sponge bis(indole) alkaloids of the hamacanthin, spongotine, and topsentin classes are described. Retrosynthetic analysis shows that their structures all include the 1-(6'-bromoindol-3'-yl)-1,2-diaminoethane unit 13a. This key moiety has been prepared from brominated indolic N-hydroxylamine 5b via synthetic intermediate 8b.
描述了六种溴化的洋紫花素,海绵蛋白和托普丁素的海洋海绵状双(吲哚)生物碱的总合成。逆合成分析显示它们的结构全部包括1-(6'-溴吲哚-3'-基)-1,2-二氨基乙烷单元13a。该关键部分是通过合成中间体8b由溴化的吲哚N-羟胺5b制备的。