作者:Takahiro Suzuki、Kenji Usui、Yoshiharu Miyake、Michio Namikoshi、Masahisa Nakada
DOI:10.1021/ol036338q
日期:2004.2.1
[reaction: see text] The first total synthesis of (+)-phomopsidin has been achieved via a diastereoselective transannular Diels-Alder (TADA) reaction. Key steps in the synthesis include diastereoselective ynone reduction with (-)-alpha-pinene and 9-BBN, macrocyclization by E-selective intramolecular Horner-Wadsworth-Emmons (HWE) reaction, as well as carbometalation under Wipf's conditions, followed
[反应:见正文]通过非对映选择性的跨环Diels-Alder(TADA)反应,实现了(+)-磷酸抗霉菌素的第一个全合成。合成的关键步骤包括用(-)-α-pine烯和9-BBN进行非对映选择性的炔酮还原,通过E-选择性分子内Horner-Wadsworth-Emmons(HWE)反应进行大环化,以及在Wipf条件下进行碳金属化,然后进行HWE反应在低温下选择性地构建(E)-1-甲基丙烯基和(1E,2E)-4-羧基-1,3-丁二烯基取代基。