Synthesis of Optically Active β,γ-Unsaturated α-Amino Acids and of α,β-Unsaturated γ-Amino Acids. SN2- vs. SN2’-Dichotomy of the Mitsunobu Amination of Allylic Alcohols
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