【文章名】Stereocontrolled Synthesis of the A/B-Ring Fragment of Gambieric Acid B: Reassignment of the Absolute Configuration of the Polycyclic Ether Region.
[摘要]：Stereocontrolled synthesis of the A/B-ring fragment I of the originally assigned structure of gambieric acid B and its possible diastereomers has been accomplished. Detailed comparison of their 1H and 13C NMR data with those of the corresponding moiety of the natural product culminated in a stereochem. reassignment of the abs. configuration of the polycyclic ether region of gambieric acid B.
