作者:Ludger A. Wessjohann、Günther O. Scheid、Uwe Eichelberger、Sumaira Umbreen
DOI:10.1021/jo401355r
日期:2013.11.1
A highly convergent and stereocontrolled synthesis of epothilone D (4) is reported. Key features are a cheap and Z-selective synthesis of the northern half based on nerol and acetoacetate and chromium(II)-mediated Reformatsky reactions as a powerful tool for chemoselective asymmetric carbon–carbon bond formations, including an unusual stereospecific macroaldolization.
报告了高度收敛和立体控制的埃博霉素D(4)的合成。主要特征是基于神经醇和乙酰乙酸和铬(II)介导的Reformatsky反应的廉价且Z选择性的北半部合成,可作为化学选择性不对称碳-碳键形成的强大工具,包括不寻常的立体定向大醛缩醛化反应。