结构复杂的震颤吲哚生物碱 (-)-penitrem D (4) 的收敛、立体控制全合成已经实现。合成的亮点包括对西半球的高效、不对称合成;I形环的立体控制组装;发现了一种新的自动氧化,以引入震颤活动所需的 C(22) 叔羟基;充分阐述了东半球和西半球的联盟,利用专门为此目的制定的吲哚合成协议;以及利用 Sc(OTf)(3-) 促进的反应级联的 A 和 F 环的后期立体选择性构建。导致 (-)-penitrem D (4) 的最长线性序列为 43 步。
Indole-Diterpene Synthetic Studies: Total Synthesis of (−)-21-Isopentenylpaxilline
作者:Amos B. Smith、Haifeng Cui
DOI:10.1002/hlca.200390328
日期:2003.12
An efficient, stereocontrolled total synthesis of the complex indole-diterpene alkaloid (−)-21-isopentenylpaxilline (1) has been achieved. Key elements of the synthesis include the stereocontrolled construction of the advanced eastern hemisphere (−)-68, involving a highly efficient union of the eastern and western fragments (−)-68 and 5 exploiting our 2-substituted indole synthesis, application of
Indole diterpene synthetic studies. 8. The total synthesis of (+)-paspalicine and (+)-paspalinine
作者:Amos B. Smith、Jill Kingery-Wood、Tamara L. Leenay、Ernest G. Nolen、Toshiaki Sunazuka
DOI:10.1021/ja00030a046
日期:1992.2
The development of a unified synthetic strategy for the indolediterpene tremorgens has led to the first totalsynthesis of (+)-paspalicine and (+)-paspalinine from 4a-methyl octahydro naphthalene-2,5 -dione