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- W2074465374 abstract "The dye-sensitized photo-oxygenation of (–)-vincadifformine (1) and (–)-tabersonine (3) is described. Reaction takes place through the intermediate formation of 16-hydroperoxyindolenines, which decompose to give 2,16-seco-products or which can be efficently trapped by reductants to give a new stereoselective synthesis of the 16-hydroxy-[3H]indoles (10) and (14). These compounds are the key precursors to the eburnane alkaloids vincamine (4) and Δ14-vincamine (6). Suitable experimental conditions give compounds (4) and (6) in good yields directly from their Aspidosperma precursor." @default.
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- W2074465374 date "1982-01-01" @default.
- W2074465374 modified "2023-10-18" @default.
- W2074465374 title "Dye-sensitized photo-oxygenation of the Aspidosperma alkaloids vincadifformine and tabersonine. A new, convenient approach to vincamine" @default.
- W2074465374 doi "https://doi.org/10.1039/p19820001371" @default.
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