The Enantioselective Synthesis of Eburnamonine, Eucophylline, and 16'-epi-Leucophyllidine.
alkaloids
convergence
cross-coupling
divergence
total synthesis
Journal
Angewandte Chemie (International ed. in English)
ISSN: 1521-3773
Titre abrégé: Angew Chem Int Ed Engl
Pays: Germany
ID NLM: 0370543
Informations de publication
Date de publication:
09 08 2021
09 08 2021
Historique:
received:
07
05
2021
pubmed:
27
5
2021
medline:
3
11
2021
entrez:
26
5
2021
Statut:
ppublish
Résumé
A synthetic approach to the heterodimeric bisindole alkaloid leucophyllidine is disclosed herein. An enantioenriched lactam building block, synthesized through palladium-catalyzed asymmetric allylic alkylation, served as the precursor to both hemispheres. The eburnamonine-derived fragment was synthesized through a Bischler-Napieralski/hydrogenation approach, while the eucophylline-derived fragment was synthesized by Friedländer quinoline synthesis and two sequential C-H functionalization steps. A convergent Stille coupling and phenol-directed hydrogenation united the two monomeric fragments to afford 16'-epi-leucophyllidine in 21 steps from commercial material.
Identifiants
pubmed: 34036708
doi: 10.1002/anie.202106184
pmc: PMC8338904
mid: NIHMS1709884
doi:
Substances chimiques
Azabicyclo Compounds
0
Indole Alkaloids
0
Vinca Alkaloids
0
eucophylline
0
leucophyllidine
0
eburnamonine
NPD9S131ZU
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Pagination
17957-17962Subventions
Organisme : NIGMS NIH HHS
ID : R01 GM080269
Pays : United States
Informations de copyright
© 2021 Wiley-VCH GmbH.
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