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[摘要]:Treatment of 2-tert-prenyltryptamines with N-bromosuccinimide gives clean access to the marine natural product flustramine C and analogues with the tert-prenyl group shifted to the 3a-position of the resulting pyrrolo[2,3-b]indole (70-80%). Dihydroflustramine C was obtained by DIBAL-H reduction of flustramine C. Bromination or N-methylation of the indole moiety does not influence the course of the rearrangement. |
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