Total syntheses of (+)-spiculoic acid A and (+)-zyggomphic acid, new marine natural products of polyketide origin
作者:Daisuke Matsumura、Toshimasa Takarabe、Takumi Toda、Takashi Hayamizu、Kiyoto Sawamura、Ken-ichi Takao、Kin-ichi Tadano
DOI:10.1016/j.tet.2011.04.006
日期:2011.9
The total syntheses of both natural (+)-spiculoic acid A and (+)-zyggomphic acid, new cytotoxic marine natural products of polyketide origin, have been accomplished for the first time. These syntheses were achieved by the highly stereoselective and high-yielding intramolecular Diels–Alder reaction of a functionalized (E,E,E)-2,7,9-dodecanal derivative to construct the core tetrahydroindan-2-one skeleton
天然(+)-吡啶甲酸A和(+)-zygomphmphic酸(聚酮化合物来源的新的细胞毒性海洋天然产物)的总合成已首次完成。这些合成是通过功能化的(E,E,E)-2,7,9-十二碳六烯衍生物的高度立体选择性和高产率的分子内Diels-Alder反应实现的,以构建核心的四氢茚满-2-一骨架。还合成了(+)-吡啶甲酸A的立体异构体,即(2 R,5 S,6 R)-异构体。描述了这些全部合成的细节。