作者:Yunlong Shi、Joshua G. Pierce
DOI:10.1021/acs.orglett.6b02629
日期:2016.10.21
was first isolated from the fronds of Plagiogyria matsumureana. Structurally, it features an α-ketoaldehyde functional group in its hemiacetal form, fused in a cis-substituted lactone ring. We have successfully synthesized the skeleton of this natural product by employing a stereocontrolled aldol reaction followed by the installation of the α-ketoaldehyde moiety derived from the mild oxidation of an
Plagiogyrin A(1)首先从Plagiogyria matsumureana的叶中分离出来。在结构上,它具有半缩醛形式的α-酮醛官能团,稠合在顺式取代的内酯环上。我们已经成功地通过立体控制的羟醛反应合成了该天然产物的骨架,随后安装了由α-二氮酮的轻度氧化衍生而来的α-酮醛部分。最后,无水酸性条件释放出被保护的二醇,并提供所需的环化半缩醛。