Stereocontrolled synthesis of the A/B-ring fragment of gambieric acid B: reassignment of the absolute configuration of the polycyclic ether region |
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| Authors: | Fuwa Haruhiko Goto Tomomi Sasaki Makoto |
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| Institution: | Laboratory of Biostructural Chemistry, Graduate School of Life Sciences, Tohoku University, Sendai, Japan. hfuwa@bios.tohoku.ac.jp |
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| Abstract: | Stereocontrolled synthesis of the A/B-ring fragment 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 stereochemical reassignment of the absolute configuration of the polycyclic ether region of gambieric acid B. |
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