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Kotha S, Agrawal A, Ansari S. Synthesis of Angular Triquinane and [4.3.3]Propellane Derivatives via Ring‐Rearrangement Olefin Metathesis. ChemistrySelect 2021. [DOI: 10.1002/slct.202103226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sambasivarao Kotha
- Arpit Agrawal Saima Ansari Department of Chemistry Indian Institute of Technology, Bombay Powai Mumbai Maharashtra India 400076
| | - Arpit Agrawal
- Arpit Agrawal Saima Ansari Department of Chemistry Indian Institute of Technology, Bombay Powai Mumbai Maharashtra India 400076
| | - Saima Ansari
- Arpit Agrawal Saima Ansari Department of Chemistry Indian Institute of Technology, Bombay Powai Mumbai Maharashtra India 400076
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Carrër A, Turban S, Provost N, Caliez A, Lamarche G, Zanirato G, Beucher M, Pean C, Mirguet O, Perron-Sierra F, Michelet V. Juniperanol: First total synthesis and evaluation in Type 2 Diabetes disease. Bioorg Chem 2019; 92:103243. [PMID: 31518756 DOI: 10.1016/j.bioorg.2019.103243] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 08/31/2019] [Accepted: 08/31/2019] [Indexed: 01/19/2023]
Abstract
The first total synthesis of juniperanol, the tricyclic sesquiterpenoid enantiomer of α-cedrol is described. The synthesis relies on stereoselective gold-catalyzed Ohloff-type propargylic ester rearrangement performed on a 10 g scale, and a carbocationic cascade in the presence of acetyl methanesulfonate. The ability of juniperanol to interfere in glucose processes in different cell types is described.
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Affiliation(s)
- A Carrër
- PSL Research University, Chimie ParisTech-CNRS, Institut de Recherche de Chimie Paris, 11 rue P. et M. Curie, 75005 Paris, France
| | - S Turban
- Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy-Seine, France
| | - N Provost
- Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy-Seine, France
| | - A Caliez
- Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy-Seine, France
| | - G Lamarche
- Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy-Seine, France
| | - G Zanirato
- Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy-Seine, France
| | - M Beucher
- Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy-Seine, France
| | - C Pean
- Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy-Seine, France
| | - O Mirguet
- Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy-Seine, France
| | - F Perron-Sierra
- Institut de Recherches Servier, 125 Chemin de Ronde, 78290 Croissy-Seine, France
| | - V Michelet
- PSL Research University, Chimie ParisTech-CNRS, Institut de Recherche de Chimie Paris, 11 rue P. et M. Curie, 75005 Paris, France; University Côte d'Azur, Institut de Chimie de Nice, Parc Valrose, Faculté des Sciences, 06100 Nice, France
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Kutateladze AG, Kuznetsov DM. Triquinanes and Related Sesquiterpenes Revisited Computationally: Structure Corrections of Hirsutanols B and D, Hirsutenol E, Cucumin B, Antrodins C–E, Chondroterpenes A and H, Chondrosterins C and E, Dichrocephone A, and Pethybrene. J Org Chem 2017; 82:10795-10802. [DOI: 10.1021/acs.joc.7b02018] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Andrei G. Kutateladze
- Department of Chemistry and
Biochemistry, University of Denver, Denver, Colorado 80208, United States
| | - Dmitry M. Kuznetsov
- Department of Chemistry and
Biochemistry, University of Denver, Denver, Colorado 80208, United States
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Dange NS, Stepherson JR, Ayala CE, Fronczek FR, Kartika R. Cooperative benzylic-oxyallylic stabilized cations: regioselective construction of α-quaternary centers in ketone-derived compounds. Chem Sci 2015; 6:6312-6319. [PMID: 30090249 PMCID: PMC6054113 DOI: 10.1039/c5sc01914a] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 07/20/2015] [Indexed: 11/23/2022] Open
Abstract
We describe a novel reactivity of benzylic-stabilized oxyallyl cations towards regioselective construction of carbon quaternary centers. These synthetically useful intermediates were readily generated upon ionization of aryl substituted α-hydroxy methylenol ethers with catalytic, mild Brønsted acid. The emerging unsymmetrical oxyallyl cations were then directly captured by indoles and other nucleophiles with exquisite control of regioselectivity, predictably at the electrophilic carbon bearing the alkyl substituent to produce highly functionalized, value-added enol ethers.
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Affiliation(s)
- Nitin S Dange
- Department of Chemistry , Louisiana State University , 232 Choppin Hall , Baton Rouge , LA 70810 , USA .
| | - Jacob R Stepherson
- Department of Chemistry , Louisiana State University , 232 Choppin Hall , Baton Rouge , LA 70810 , USA .
| | - Caitlan E Ayala
- Department of Chemistry , Louisiana State University , 232 Choppin Hall , Baton Rouge , LA 70810 , USA .
| | - Frank R Fronczek
- Department of Chemistry , Louisiana State University , 232 Choppin Hall , Baton Rouge , LA 70810 , USA .
| | - Rendy Kartika
- Department of Chemistry , Louisiana State University , 232 Choppin Hall , Baton Rouge , LA 70810 , USA .
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Synthesis of angularly fused cyclopentanoids and analogous tricycles via photoinduced ketyl radical/radical anion fragmentation–cyclization reactions. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.07.092] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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