Synthetic Studies toward Potent Cytotoxic Agents Amphidinolides: Synthesis of the C<sub>1</sub>-C<sub>6</sub>and C<sub>9</sub>-C<sub>17</sub>Moieties of Amphidinolides O and P
作者:T. K. Chakraborty、Sanjib Das
DOI:10.1246/cl.2000.80
日期:2000.1
Stereoselective synthesis of the (4R)-C1-C6 and (14R, 15R)-C9-C17 segments, 4 and 5 respectively, of amphidinolides O and P have been achieved starting from a common chiral precursor 6 which was obtained by radical-mediated opening of a trisubstituted epoxy alcohol using Cp2TiCl-cyclohexa-1,4-diene.
两栖类内酯 O 和 P 的 (4R)-C1-C6 和 (14R, 15R)-C9-C17 片段分别为 4 和 5 的立体选择性合成是从通过自由基介导获得的共同手性前体 6 开始实现的使用 Cp2TiCl-环己-1,4-二烯打开三取代环氧醇。
Mata, Ernesto G.; Thomas, Eric J., Journal of the Chemical Society. Perkin transactions I, 1995, # 7, p. 785 - 800
作者:Mata, Ernesto G.、Thomas, Eric J.
DOI:——
日期:——
A Highly Convergent Approach toward (−)-Brevenal
作者:Michael T. Crimmins、Mariam Shamszad、Anita E. Mattson
DOI:10.1021/ol1008203
日期:2010.6.4
Construction of the AB-ring and E-ring cyclic ether fragments was achieved through asymmetric alkylation/ring-closingmetathesis strategies. A Horner−Wadsworth−Emmons olefination was used in a key bond-forming step to couple the advanced cyclic fragments and enable rapid access to the AB-E ringsystem.
报告了向高度收敛、不对称合成 brevenal 的进展。AB 环和 E 环环醚片段的构建是通过不对称烷基化/闭环复分解策略实现的。Horner-Wadsworth-Emmons 烯化用于关键的键形成步骤,以耦合高级环状片段并能够快速进入 AB-E 环系统。