Synthetic Studies on Azaspiracid: Synthesis of Key Intermediate for the Construction of the FGHI Ring System
作者:J. Yadav、C. Venugopal
DOI:10.1055/s-2007-985585
日期:——
the FGHI ring system of azaspiracid is -described. The synthesis features the desymmetrization strategy for the construction of the C27-C33 fragment, Masamune-Roush coupling conditions for the C33-C34 bond formation, and Sharpless asymmetric dihydroxylation as the key steps. One more important feature of this synthetic route is that we can synthesize other -enantiomers of the FGHI ring system by changing
描述了氮杂螺酸的 FGHI 环系统的关键中间体的高度立体选择性和收敛方法。该合成以构建 C27-C33 片段的去对称化策略、C33-C34 键形成的 Masamune-Roush 偶联条件和 Sharpless 不对称二羟基化为关键步骤为特征。这种合成路线的一个更重要的特点是我们可以通过改变不对称硼氢化条件和戊内酯来合成 FGHI 环系统的其他对映异构体。