|
1
|
Allievi L, Dhambri S, Sun R, Selkti M, Lannou MI, Sorin G, Ardisson J. Gold(I)-Catalyzed 7- exo-dig Cyclization: A Key Step to Access the Bicyclo[4.2.1]nonane Skeleton of Vibsatin A, a Neurotrophic Diterpenoid. Org Lett 2021; 23:5218-5222. [PMID: 34156861 DOI: 10.1021/acs.orglett.1c01757] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Vibsatin A is a new neurotrophic vibsane-type diterpenoid comprising a bridged bicyclo[4.2.1]nonane skeleton. Inspired by Sawamura's works, we generated the bicyclic backbone through a Conia-ene-derived 7-exo-dig cyclization from an enantiomerically enriched TIPS-based silyl enol ether. The reaction, catalyzed by a sensitive gold(I) complex, was efficiently performed on a large scale by glovebox free techniques. Furthermore, the shape of this system was exploited for subsequent installation of all of the stereogenic centers.
Collapse
Affiliation(s)
- Luca Allievi
- UMR CNRS 8038, Faculté de Pharmacie, Université de Paris, 4 avenue de l'Observatoire, 75270 Paris cedex 06, France
| | - Sabrina Dhambri
- UMR CNRS 8038, Faculté de Pharmacie, Université de Paris, 4 avenue de l'Observatoire, 75270 Paris cedex 06, France
| | - Rongyu Sun
- UMR CNRS 8038, Faculté de Pharmacie, Université de Paris, 4 avenue de l'Observatoire, 75270 Paris cedex 06, France
| | - Mohamed Selkti
- UMR CNRS 8038, Faculté de Pharmacie, Université de Paris, 4 avenue de l'Observatoire, 75270 Paris cedex 06, France
| | - Marie-Isabelle Lannou
- UMR CNRS 8038, Faculté de Pharmacie, Université de Paris, 4 avenue de l'Observatoire, 75270 Paris cedex 06, France
| | - Geoffroy Sorin
- UMR CNRS 8038, Faculté de Pharmacie, Université de Paris, 4 avenue de l'Observatoire, 75270 Paris cedex 06, France
| | - Janick Ardisson
- UMR CNRS 8038, Faculté de Pharmacie, Université de Paris, 4 avenue de l'Observatoire, 75270 Paris cedex 06, France
| |
Collapse
|
|
2
|
Chow S, Krainz T, Bernhardt PV, Williams CM. En Route to D-Ring Inverted Phorbol Esters. Org Lett 2019; 21:8761-8764. [DOI: 10.1021/acs.orglett.9b03379] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Sharon Chow
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Australia
| | - Tanja Krainz
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Australia
| | - Paul V. Bernhardt
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Australia
| | - Craig M. Williams
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Australia
| |
Collapse
|
|
3
|
Fukuyama Y, Kubo M, Esumi T, Harada K, Hioki H. Chemistry and Biological Activities of Vibsane-Type Diterpenoids. HETEROCYCLES 2010. [DOI: 10.3987/rev-10-671] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|