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Sanogo Y, Othman RB, Dhambri S, Selkti M, Jeuken A, Prunet J, Férézou JP, Ardisson J, Lannou MI, Sorin G. Ti(II) and Rh(I) Complexes as Reagents toward a Thapsigargin Core. J Org Chem 2019; 84:5821-5830. [PMID: 30964681 DOI: 10.1021/acs.joc.8b03249] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A novel approach toward the [5-7]fused bicyclic core of thapsigargin, a subnanomolar inhibitor of the endo/sarcoplasmic calcium ATPase (SERCA), is presented. The synthetic route includes an original Ti(II)-mediated hydroxy-directed reductive coupling of an enantiomerically enriched propargylic alcohol and an intramolecular Rh(I)-catalyzed cyclocarbonylation reaction as key steps. Interestingly, through the first experiments of titanocene-mediated reductive cyclization of a 1,8-enyne, a seven-membered cycle was isolated as a unique product with a total diastereoselectivity.
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Affiliation(s)
- Youssouf Sanogo
- Unité CNRS UMR 8638 , Université Paris Descartes, Faculté de Pharmacie , Sorbonne Paris Cité, 4 Avenue de l'Observatoire , Paris Cedex 06 75270 , France
| | - Raja Ben Othman
- Unité CNRS UMR 8638 , Université Paris Descartes, Faculté de Pharmacie , Sorbonne Paris Cité, 4 Avenue de l'Observatoire , Paris Cedex 06 75270 , France
| | - Sabrina Dhambri
- Unité CNRS UMR 8638 , Université Paris Descartes, Faculté de Pharmacie , Sorbonne Paris Cité, 4 Avenue de l'Observatoire , Paris Cedex 06 75270 , France
| | - Mohamed Selkti
- Unité CNRS UMR 8015 , Université Paris Descartes, Faculté de Pharmacie , Sorbonne Paris Cité, 4 Avenue de l'Observatoire , Paris Cedex 06 75270 , France
| | - Alan Jeuken
- WestCHEM, School of Chemistry , University of Glasgow , Joseph Black Building, University Avenue , Glasgow G12 8QQ , United Kingdom
| | - Joëlle Prunet
- WestCHEM, School of Chemistry , University of Glasgow , Joseph Black Building, University Avenue , Glasgow G12 8QQ , United Kingdom
| | - Jean-Pierre Férézou
- Méthodologie, Synthèse et Molécules Thérapeutiques, ICMMO (CNRS UMR 8182) , Université Paris-Sud, Université Paris-Saclay , Bâtiment 410 , Orsay F-91405 , France
| | - Janick Ardisson
- Unité CNRS UMR 8638 , Université Paris Descartes, Faculté de Pharmacie , Sorbonne Paris Cité, 4 Avenue de l'Observatoire , Paris Cedex 06 75270 , France
| | - Marie-Isabelle Lannou
- Unité CNRS UMR 8638 , Université Paris Descartes, Faculté de Pharmacie , Sorbonne Paris Cité, 4 Avenue de l'Observatoire , Paris Cedex 06 75270 , France
| | - Geoffroy Sorin
- Unité CNRS UMR 8638 , Université Paris Descartes, Faculté de Pharmacie , Sorbonne Paris Cité, 4 Avenue de l'Observatoire , Paris Cedex 06 75270 , France
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2
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Zimmermann T, Christensen SB, Franzyk H. Preparation of Enzyme-Activated Thapsigargin Prodrugs by Solid-Phase Synthesis. Molecules 2018; 23:molecules23061463. [PMID: 29914143 PMCID: PMC6100299 DOI: 10.3390/molecules23061463] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Revised: 06/05/2018] [Accepted: 06/12/2018] [Indexed: 11/20/2022] Open
Abstract
Since cells in solid tumors divide less rapidly than cells in the bone marrow or cells of the immune system, mitotic inhibitors often cause severe side effects when used for treatment of diseases like prostate cancer and breast cancer. One approach to overcome this problem involves attempts at developing drugs based on general cytotoxins, like calicheamicin and thapsigargin, which kill cells at all phases of the cell cycle. However, such toxins can only be used when efficient targeting to the malignant tissue is possible. In the case of thapsigargin, selectivity for tumor-associated cells is achieved by conjugating the drug to a peptide that is only cleaved in the vicinity of tumors to release the cytotoxic drug or an analog with retained activity. Solid-phase synthesis protocols were developed for preparation of three already validated prodrugs of thapsigargin: one prodrug cleavable by human kallikrein 2, one prodrug cleavable by prostate-specific antigen, and one prodrug cleavable by prostate-specific membrane antigen.
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Affiliation(s)
- Tomas Zimmermann
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Jagtvej 162, DK-2100 Copenhagen, Denmark.
| | - Søren Brøgger Christensen
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Jagtvej 162, DK-2100 Copenhagen, Denmark.
| | - Henrik Franzyk
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Jagtvej 162, DK-2100 Copenhagen, Denmark.
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3
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Jouanneau M, Bonepally KR, Jeuken A, Tap A, Guillot R, Ardisson J, Férézou JP, Prunet J. Diastereoselective Synthesis of an Advanced Intermediate of Thapsigargin and Other 6,12-Guaianolides Using a RCEYM Strategy. Org Lett 2018; 20:2176-2180. [PMID: 29616815 DOI: 10.1021/acs.orglett.8b00456] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A new and flexible approach toward the synthesis of 6,12-guaianolide anticancer drugs such as trilobolides or thapsigargin has been developed that could be applied to the preparation of analogues with a modified ring system. The synthesis starts from commercial 2-methylcyclopentane-1,3-dione, only relying on diastereoselective reactions for the construction of the stereogenic centers at C1, C3, C6, and C10 and features a high-yielding ring-closing enyne metathesis (RCEYM) step for the formation of the [5,7] bicyclic core.
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Affiliation(s)
- Morgan Jouanneau
- Méthodologie, Synthèse et Molécules Thérapeutiques, ICMMO (CNRS UMR 8182) , Université Paris-Sud, Université Paris-Saclay , Bâtiment 410 , F-91405 Orsay , France
| | - Karunakar Reddy Bonepally
- Méthodologie, Synthèse et Molécules Thérapeutiques, ICMMO (CNRS UMR 8182) , Université Paris-Sud, Université Paris-Saclay , Bâtiment 410 , F-91405 Orsay , France
| | - Alan Jeuken
- WestCHEM, School of Chemistry , University of Glasgow , Joseph Black Building, University Avenue , Glasgow G12 8QQ , U.K
| | - Aurélien Tap
- Faculté de Pharmacie (CNRS UMR 8638) , Université Paris Descartes , 4 avenue de l'Observatoire , F-75270 Paris 06 , France
| | - Régis Guillot
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (CNRS UMR 8182) , Université Paris-Sud, Université Paris-Saclay , Bâtiment 420 , F-91405 Orsay , France
| | - Janick Ardisson
- Faculté de Pharmacie (CNRS UMR 8638) , Université Paris Descartes , 4 avenue de l'Observatoire , F-75270 Paris 06 , France
| | - Jean-Pierre Férézou
- Méthodologie, Synthèse et Molécules Thérapeutiques, ICMMO (CNRS UMR 8182) , Université Paris-Sud, Université Paris-Saclay , Bâtiment 410 , F-91405 Orsay , France
| | - Joëlle Prunet
- WestCHEM, School of Chemistry , University of Glasgow , Joseph Black Building, University Avenue , Glasgow G12 8QQ , U.K
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4
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Doan NTQ, Paulsen ES, Sehgal P, Møller JV, Nissen P, Denmeade SR, Isaacs JT, Dionne CA, Christensen SB. Targeting thapsigargin towards tumors. Steroids 2015; 97:2-7. [PMID: 25065587 PMCID: PMC4696022 DOI: 10.1016/j.steroids.2014.07.009] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 07/04/2014] [Accepted: 07/09/2014] [Indexed: 11/16/2022]
Abstract
The skin irritating principle from Thapsia garganica was isolated, named thapsigargin and the structure elucidated. By inhibiting the sarco/endoplasmic reticulum Ca(2+) ATPase (SERCA) thapsigargin provokes apoptosis in almost all cells. By conjugating thapsigargin to peptides, which are only substrates for either prostate specific antigen (PSA) or prostate specific membrane antigen (PSMA) prodrugs were created, which selectively affect prostate cancer cells or neovascular tissue in tumors. One of the prodrug is currently tested in clinical phase II. The prodrug under clinical trial has been named mipsagargin.
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Affiliation(s)
- Nhu Thi Quynh Doan
- Department of Drug Design and Pharmacology, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen Ø, Denmark
| | - Eleonora Sandholdt Paulsen
- Department of Drug Design and Pharmacology, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen Ø, Denmark
| | - Pankaj Sehgal
- Department of Biomedicine, Ole Worms Allé 6, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Jesper Vuust Møller
- Department of Biomedicine, Ole Worms Allé 6, Aarhus University, DK-8000 Aarhus C, Denmark
| | - Poul Nissen
- Department of Molecular Biology and Genetics, Aarhus University, Gustav Wieds Vej 10, DK-8000 Aarhus C, Denmark
| | - Samuel R Denmeade
- The Bunting-Blaustein Cancer Research Building, 1650 Orleans Street, Baltimore, MD 21231, USA
| | - John T Isaacs
- The Bunting-Blaustein Cancer Research Building, 1650 Orleans Street, Baltimore, MD 21231, USA
| | - Craig A Dionne
- GenSpera, 2511 N Loop 1604 W, Suite 204, San Antonio, TX 78258, USA
| | - Søren Brøgger Christensen
- Department of Drug Design and Pharmacology, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen Ø, Denmark.
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5
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Andersen TB, López CQ, Manczak T, Martinez K, Simonsen HT. Thapsigargin--from Thapsia L. to mipsagargin. Molecules 2015; 20:6113-27. [PMID: 25856061 PMCID: PMC6272310 DOI: 10.3390/molecules20046113] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 03/26/2015] [Accepted: 03/30/2015] [Indexed: 12/23/2022] Open
Abstract
The sesquiterpene lactone thapsigargin is found in the plant Thapsia garganica L., and is one of the major constituents of the roots and fruits of this Mediterranean species. In 1978, the first pharmacological effects of thapsigargin were established and the full structure was elucidated in 1985. Shortly after, the overall mechanism of the Sarco-endoplasmic reticulum Ca2+-ATPase (SERCA) inhibition that leads to apoptosis was discovered. Thapsigargin has a potent antagonistic effect on the SERCA and is widely used to study Ca2+-signaling. The effect on SERCA has also been utilized in the treatment of solid tumors. A prodrug has been designed to target the blood vessels of cancer cells; the death of these blood vessels then leads to tumor necrosis. The first clinical trials of this drug were initiated in 2008, and the potent drug is expected to enter the market in the near future under the generic name Mipsagargin (G-202). This review will describe the discovery of the new drug, the on-going elucidation of the biosynthesis of thapsigargin in the plant and attempts to supply the global market with a novel potent anti-cancer drug.
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Affiliation(s)
- Trine Bundgaard Andersen
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg, Denmark.
| | - Carmen Quiñonero López
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg, Denmark.
| | - Tom Manczak
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg, Denmark.
| | - Karen Martinez
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg, Denmark.
| | - Henrik Toft Simonsen
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg, Denmark.
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6
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Ollivier A, Grougnet R, Cachet X, Meriane D, Ardisson J, Boutefnouchet S, Deguin B. Large scale purification of the SERCA inhibitor Thapsigargin from Thapsia garganica L. roots using centrifugal partition chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 926:16-20. [DOI: 10.1016/j.jchromb.2013.02.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Revised: 01/31/2013] [Accepted: 02/04/2013] [Indexed: 10/27/2022]
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7
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Transcriptome analysis of Thapsia laciniata Rouy provides insights into terpenoid biosynthesis and diversity in Apiaceae. Int J Mol Sci 2013; 14:9080-98. [PMID: 23698765 PMCID: PMC3676774 DOI: 10.3390/ijms14059080] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Revised: 03/21/2013] [Accepted: 04/17/2013] [Indexed: 12/04/2022] Open
Abstract
Thapsia laciniata Rouy (Apiaceae) produces irregular and regular sesquiterpenoids with thapsane and guaiene carbon skeletons, as found in other Apiaceae species. A transcriptomic analysis utilizing Illumina next-generation sequencing enabled the identification of novel genes involved in the biosynthesis of terpenoids in Thapsia. From 66.78 million HQ paired-end reads obtained from T. laciniata roots, 64.58 million were assembled into 76,565 contigs (N50: 1261 bp). Seventeen contigs were annotated as terpene synthases and five of these were predicted to be sesquiterpene synthases. Of the 67 contigs annotated as cytochromes P450, 18 of these are part of the CYP71 clade that primarily performs hydroxylations of specialized metabolites. Three contigs annotated as aldehyde dehydrogenases grouped phylogenetically with the characterized ALDH1 from Artemisia annua and three contigs annotated as alcohol dehydrogenases grouped with the recently described ADH1 from A. annua. ALDH1 and ADH1 were characterized as part of the artemisinin biosynthesis. We have produced a comprehensive EST dataset for T. laciniata roots, which contains a large sample of the T. laciniata transcriptome. These transcriptome data provide the foundation for future research into the molecular basis for terpenoid biosynthesis in Thapsia and on the evolution of terpenoids in Apiaceae.
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8
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Substituent effects in the transannular cyclizations of germacranes. Synthesis of 6-epi-costunolide and five natural steiractinolides. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.09.017] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Andrews SP, Ball M, Wierschem F, Cleator E, Oliver S, Högenauer K, Simic O, Antonello A, Hünger U, Smith MD, Ley SV. Total Synthesis of Five Thapsigargins: Guaianolide Natural Products Exhibiting Sub-Nanomolar SERCA Inhibition. Chemistry 2007; 13:5688-712. [PMID: 17508363 DOI: 10.1002/chem.200700302] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Herein we describe the total synthesis of five guaianolide natural products: thapsigargin, thapsivillosin C, thapsivillosin F, trilobolide and nortrilobolide. Prodrug derivatives of thapsigargin have shown selective in vivo cytotoxicity against prostate tumours and the need for further investigation of this phenomenon highlights the importance of these total syntheses. The first absolute stereochemical assignment of thapsivillosin C is also delineated.
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Affiliation(s)
- Stephen P Andrews
- University Chemical Laboratory, Lensifield Road, Cambridge, CB2 1EW, UK
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10
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Takahashi M, Kondou Y, Toyoshima C. Interdomain communication in calcium pump as revealed in the crystal structures with transmembrane inhibitors. Proc Natl Acad Sci U S A 2007; 104:5800-5. [PMID: 17389383 PMCID: PMC1851572 DOI: 10.1073/pnas.0700979104] [Citation(s) in RCA: 105] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2007] [Indexed: 11/18/2022] Open
Abstract
Ca(2+)-ATPase of skeletal muscle sarcoplasmic reticulum is an ATP-driven Ca(2+) pump consisting of three cytoplasmic domains and 10 transmembrane helices. In the absence of Ca(2+), the three cytoplasmic domains gather to form a compact headpiece, but the ATPase is unstable without an inhibitor. Here we describe the crystal structures of Ca(2+)-ATPase in the absence of Ca(2+) stabilized with cyclopiazonic acid alone and in combination with other inhibitors. Cyclopiazonic acid is located in the transmembrane region of the protein near the cytoplasmic surface. The binding site partially overlaps with that of 2,5-di-tert-butyl-1,4-dihydroxybenzene but is separate from that of thapsigargin. The overall structure is significantly different from that stabilized with thapsigargin: The cytoplasmic headpiece is more upright, and the transmembrane helices M1-M4 are rearranged. Cyclopiazonic acid primarily alters the position of the M1' helix and thereby M2 and M4 and then M5. Because M5 is integrated into the phosphorylation domain, the whole cytoplasmic headpiece moves. These structural changes show how an event in the transmembrane domain can be transmitted to the cytoplasmic domain despite flexible links between them. They also reveal that Ca(2+)-ATPase has considerable plasticity even when fixed by a transmembrane inhibitor, presumably to accommodate thermal fluctuations.
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Affiliation(s)
- Mihoko Takahashi
- Institute of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Youhei Kondou
- Institute of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
| | - Chikashi Toyoshima
- Institute of Molecular and Cellular Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
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Andrews SP, Tait MM, Ball M, Ley SV. Design and total synthesis of unnatural analogues of the sub-nanomolar SERCA inhibitor thapsigargin. Org Biomol Chem 2007; 5:1427-36. [PMID: 17464412 DOI: 10.1039/b702481a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thapsigargin is a densely oxygenated guaianolide which displays potent sarco/endoplasmic reticulum Ca(2+) ATPase (SERCA) binding affinities. The total syntheses of designed unnatural analogues of this important natural product are described. This article constitutes the chemical synthesis behind an ongoing project. Rational modifications have been made to the lactone region of thapsigargin in order to obtain derivatives for future structure-activity relationship studies.
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Affiliation(s)
- Stephen P Andrews
- University Chemical Laboratory, Lensfield Road, Cambridge, CB2 1EW, UK
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12
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Stocker P, Yousfi M, Djerridane O, Perrier J, Amziani R, El Boustani S, Moulin A. Effect of flavonoids from various Mediterranean plants on enzymatic activity of intestinal carboxylesterase. Biochimie 2005; 86:919-25. [PMID: 15667942 DOI: 10.1016/j.biochi.2004.09.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2004] [Accepted: 09/13/2004] [Indexed: 11/27/2022]
Abstract
Flavonol compounds of three Mediterranean plants from the Algerian Atlas used traditionally in Arab folk medicine, Arenaria serpyllifolia, Rhamnus alaternus and Thapsia garganica, were found to inhibit the enzymatic activities of both rat intestine and purified porcine liver carboxylesterase in a concentration-dependent manner. Results indicate that the flavonol compounds from the aerial part of these plants lead to the inactivation of the CE pI = 5.1 with Ki of micromolar range. These results encourage us to perform further biological investigation.
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Affiliation(s)
- P Stocker
- Institut Méditerranéen de Recherche en Nutrition, Faculté des Sciences de St-Jérôme, Université d'Aix-Marseille, 13397 Marseille cedex 20, France.
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13
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Kaliappan KP, Nandurdikar RS. A facile domino metathetic route to a thapsigargin skeleton. Org Biomol Chem 2005; 3:3613-4. [PMID: 16211096 DOI: 10.1039/b510388f] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile synthesis of a 5,7,5-fused ring system that is present in thapsigargins belonging to a novel family of sesquiterpene lactones, guainanolides, using domino enyne-RCM is reported here.
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Affiliation(s)
- Krishna P Kaliappan
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400 076, India.
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14
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Ley SV, Antonello A, Balskus EP, Booth DT, Christensen SB, Cleator E, Gold H, Högenauer K, Hünger U, Myers RM, Oliver SF, Simic O, Smith MD, Søhoel H, Woolford AJA. Synthesis of the thapsigargins. Proc Natl Acad Sci U S A 2004; 101:12073-8. [PMID: 15226504 PMCID: PMC514437 DOI: 10.1073/pnas.0403300101] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The thapsigargins are a family of complex guaianolides with potent and selective Ca(2+)-modulating properties. This article documents the evolution of a synthetic route through several iterations to a final practical and scaleable synthetic route capable of generating both unnatural and natural products based around the guaianolide skeleton.
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Affiliation(s)
- Steven V Ley
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom.
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15
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Muckensturm B, Sen F, Boulanger A, Reduron JP. Germacranolides from seeds of the endangered Umbelliferae species Rouya polygama. PHYTOCHEMISTRY 2003; 63:863-867. [PMID: 12895531 DOI: 10.1016/s0031-9422(03)00223-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
From the etheral extract of Rouya polygama Coincy seeds (Umbelliferae) six new germacranolides 1-6 were isolated. The structures were elucidated by chemical methods and spectroscopic analysis. Compounds 1 and 4 exhibited activity against Artemia salina larvae.
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Affiliation(s)
- Bernard Muckensturm
- Université de Haute Alsace, Ecole Nationale Supérieure de Chimie de Mulhouse, 3 rue Alfred Werner, F-68093 Cedex, Mulhouse, France.
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16
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Avato P, Rosito I. Essential Oils from the Roots ofThapsia garganicaL. JOURNAL OF ESSENTIAL OIL RESEARCH 2002. [DOI: 10.1080/10412905.2002.9699749] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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17
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Avato P, Smitt UW. Composition of the Essential Oils from the Roots ofThapsia maximaMiller andT. villosaL. JOURNAL OF ESSENTIAL OIL RESEARCH 2000. [DOI: 10.1080/10412905.2000.9699522] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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