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- W3150709095 endingPage "13221" @default.
- W3150709095 startingPage "13215" @default.
- W3150709095 abstract "Abstract We report here a concise, collective, and asymmetric total synthesis of sarpagine alkaloids and biogenetically related koumine alkaloids, which structurally feature a rigid cage scaffold, with L ‐tryptophan as the starting material. Two key bridged skeleton‐forming reactions, namely tandem sequential oxidative cyclopropanol ring‐opening cyclization and ketone α‐allenylation, ensure concurrent assembly of the caged sarpagine scaffold and installation of requisite derivative handles. With a common caged intermediate as the branch point, by taking advantage of ketone and allene groups therein, total synthesis of five sarpagine alkaloids (affinisine, normacusine B, trinervine, N a ‐methyl‐16‐epipericyclivine, and vellosimine) with various substituents and three koumine alkaloids (koumine, koumimine, and N ‐demethylkoumine) with more complex cage scaffolds has been accomplished." @default.
- W3150709095 created "2021-04-13" @default.
- W3150709095 creator A5002377361 @default.
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- W3150709095 creator A5087890252 @default.
- W3150709095 date "2021-05-05" @default.
- W3150709095 modified "2023-10-16" @default.
- W3150709095 title "Asymmetric Total Synthesis of Sarpagine and Koumine Alkaloids" @default.
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