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Beilstein J. Org. Chem. 2025, 21, 2730–2738, doi:10.3762/bjoc.21.210
Graphical Abstract
Figure 1: Structures of prenylindole alkaloids derived from tryptophan.
Figure 2: Representative retrosynthetic considerations for 7-prenyl- and 7-allyltryptophan.
Scheme 1: C-7 Functionalization of 7-iodo-Nα-Boc-tryptophan methyl ester.
Scheme 2: C-7 Prenylation via C–H activation.
Figure 3: Negishi cross-coupling of allyl- and prenyl(iodo)indoles.
Scheme 3: Synthesis of prenyl- and allylindoles.
Scheme 4: Markovnikov hydrochlorination and hydrotrifluoroacetylation.
Scheme 5: Synthesis of asperdinones B–E 1–4.
Scheme 6: Control experiment.
Scheme 7: Control experiment of the Negishi cross-coupling reaction.
Scheme 8: Synthesis of terezine D and ent-asperdinone E.