First Total Synthesis of (−)-Achilleol B: Reassignment of Its Relative Stereochemistry
作者:Jesús F. Arteaga、Victoriano Domingo、José F. Quílez del Moral、Alejandro F. Barrero
DOI:10.1021/ol800326n
日期:2008.5.1
The first total synthesis of (-)-achilleol B was achieved using a convergent approach with a longest linear sequence of 14 steps. Three key steps were employed, including an enantioselective Robinson annelation for the construction of the bicyclic moiety. The monocyclic synthon was prepared through a Ti(III)-mediated cylization of a chiral monoepoxide obtained via asymmetric dihydroxylation of geranylacetone
(-)-achilleol B的第一个全合成使用收敛方法进行,最长线性序列为14个步骤。使用了三个关键步骤,包括用于构建双环部分的对映选择性Robinson脱嵌。单环合成子是通过手性单环氧化物的Ti(III)介导的环化反应而制备的,手性单环氧化物是通过香叶基丙酮的不对称二羟基化反应获得的。这些亚基的不对称制备也使我们能够实现线虫二醇,阿奇烯醇A和法呢酚B的对映选择性合成。