Total Synthesis of (+)-Aspicilin by an Alkyne-Based Approach and Its Biological Evaluation
作者:Chada Raji Reddy、Nagavaram Narsimha Rao、Pombala Sujitha、Chityal Ganesh Kumar
DOI:10.1002/ejoc.201101673
日期:2012.3
stereoselective total synthesis of (+)-aspicilin is described. The pivotal step in this approach is the generation of an enyne intermediate by the coupling of an alkyne with vinyl iodide, which constructed the C6–C7 bond. Conversion of the enyne to the desired macrolide was achieved through Sharpless asymmetric dihydroxylation and Yamaguchi macrolactonization as the key steps. Additionally, the biological activity
描述了 (+)-aspicilin 的立体选择性全合成。该方法的关键步骤是通过炔烃与乙烯基碘的偶联生成烯炔中间体,从而构建 C6-C7 键。通过 Sharpless 不对称二羟基化和 Yamaguchi 大环内酯化作为关键步骤,将烯炔转化为所需的大环内酯。此外,在 A549、HeLa 和 MCF7 癌细胞系上评估了 (+)-aspicilin 的生物活性。