[structure: see text] The totalsynthesis of (-)-21-isopentenylpaxilline (1) has been achieved. Key elements of the synthesis include the stereocontrolledconstruction of the advanced eastern hemisphere (-)-5, a highly efficient union of the eastern and western fragments (-)-5 and 4, respectively, exploiting our 2-substituted indole synthesis, and a new protocol for the construction of ring C.
Verfahren zur Herstellung von Anilinboronsäuren und ihren Derivaten
申请人:Archimica GmbH
公开号:EP1479686B1
公开(公告)日:2006-10-04
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
Mixed copper, zinc 2-amino benzylic organometallics as efficient reagents for the synthesis of heterocycles
作者:Huai Gu Chen、Craig Hoechstetter、Paul Knochel
DOI:10.1016/s0040-4039(01)80510-4
日期:1989.1
The mixed copper, zincbenzylicorganometallics 1a–1c react efficiently with various electrophiles. By the reaction with acyl chlorides, highly functionalized 2-substituted indoles are produced. The treatment of 1a with allylic bromides, 3-iodo-cyclohexenone and ethyl propiolate furnishes polyfunctionalized anilines. Several of them could be converted into five- or seven-membered heterocycles.