Total Synthesis of Pestalotioprolide E and Structural Revision of Pestalotioprolide F
作者:Debobrata Paul、Sanu Saha、Rajib Kumar Goswami
DOI:10.1021/acs.orglett.8b01894
日期:2018.8.3
A short and convergent strategy for the first asymmetric total synthesis of cytotoxic macrolides pestalotioprolides E and F has been developed. The key features of this synthesis include Takai olefination, Sonogashira coupling, Ni-assisted partial hydrogenation of alkyne, modified Steglich reaction to generate the ester moiety, and intramolecular Horner–Wadsworth–Emmons (HWE) olefination to complete
已经开发出了一种短而收敛的策略,用于细胞毒性大环内酯类农药戊二酚E和F的首次不对称全合成。该合成的主要特征包括Takai烯烃化,Sonogashira偶联,炔烃的Ni辅助部分加氢,经过修饰的Steglich反应以生成酯部分以及分子内Horner-Wadsworth-Emmons(HWE)烯烃化以完成大环。这项综合性研究修订了拟定的比索洛特奈酯F的结构。