Synthesis and studies of marine natural products: the dictyoxetane core from 8-oxabicyclo[3.2.1]oct-6-en-3-ones
作者:S Proemmel、R Wartchow、H.M.R Hoffmann
DOI:10.1016/s0040-4020(02)00622-1
日期:2002.7
Starting from functionalized 8-oxabicyclo[3.2.1]oct-6-en-3-one rac-3 a series of tricyclic epoxy alcohols (4, and aminated derivative 16) have been prepared. After some tuning of the oxygen and nitrogen protecting group at carbon C3 with respect to steric bulk, stability and lipophilicity the highly functionalized tricyclic oxetanes 5 and 17 are accessible in short synthetic order. The structure of
从官能化的8-氧杂双环[3.2.1] oct-6-en-3-one rac - 3开始,制备了一系列三环环氧醇(4和胺化的衍生物16)。在碳C3处的氧和氮保护基团相对于空间体积,稳定性和亲脂性进行了一些调节之后,可以以短合成顺序获得高度官能化的三环氧杂环丁烷5和17。关键的二氧三环9b和17的结构已通过X射线晶体衍射分析得到了证实。生物活性已得到评估。