enable late-stage introduction of the EF-ring segment. The new synthetic route has been developed through strategic application of a Suzuki-Miyaura reaction as the key step, which coupled the EF-ring segment with the D-ring to give a 1,1′-disubsitituted alkene in good yield under biphasic conditions. Further manipulation of the coupling product completed the construction of the DEF-ring system.
探索了一种新的
蒽环类
天然产物,Nogalamycin和Menogaril的全合成方法。目的是使EF环段的后期引入成为可能。通过战略应用铃木-宫浦反应(Suzuki-Miyaura reaction)作为关键步骤,开发了新的合成路线,该步骤将EF-环段与D-环偶联,从而在双相条件下以高收率得到1,1'-二取代的烯烃。耦合产品的进一步操作完成了DEF环系统的构建。