Acetogenins of annonaceae. Part 86: synthesis of a highly functionalized precursor of (-)-4-deoxygigantecin, an annonaceous acetogenin
作者:Magali Szlosek、Jean-François Peyrat、Christophe Chaboche、Xavier Franck、Reynald Hocquemiller、Bruno Figadère
DOI:10.1039/b000236o
日期:——
C-glycosylation and (iii) diastereoselective aldolization reactions, all of them using 2-trimethylsilyloxyfuran as nucleophile. This strategy would allow us to prepare squamostatin D as well, another acetogenin of Annonaceae possessing two nonadjacent tetrahydrofuran rings and a closely related tetrahydrofuran pattern.
从十六烷中经过14步制备了具有六个立体生成中心的(-)-4-deoxygigantecin的高度功能化的前体。关键步骤是(i)对映选择性醛缩反应,(ii)非对映选择性C-糖基化和(iii)非对映选择性醛缩反应,所有这些步骤均使用2-三甲基甲硅烷氧基呋喃作为亲核试剂。这种策略将使我们也可以制备南瓜素D,这是番荔枝科的另一种产黄素, 具有两个不相邻的四氢呋喃环和密切相关的四氢呋喃模式。