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Antão AR, Bangay G, Domínguez-Martín EM, Díaz-Lanza AM, Ríjo P. Plectranthus ecklonii Benth: A Comprehensive Review Into its Phytochemistry and Exerted Biological Activities. Front Pharmacol 2021; 12:768268. [PMID: 34916943 PMCID: PMC8670309 DOI: 10.3389/fphar.2021.768268] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 10/15/2021] [Indexed: 12/28/2022] Open
Abstract
Ethnopharmacological Relevance: Plectranthus genus (Lamiaceae family) contain several species with acknowledged ethnopharmacological uses, such as, for gastrointestinal and respiratory-related problems, due to their anti-inflammatory, antibacterial and antifungal properties. The bioactivity of isolated medicinal compounds from this genus justifies the increased interest in recent times for species of Plectranthus, placing them in the spotlight for natural product drug development. Aim of the study: To the best of our knowledge, this is the first review on the biological activities of Plectranthus ecklonii Benth. As such, the aim of this review was three-fold: 1) to summarize the chemical compounds isolated from P. ecklonii; 2) to collate the biological activities and mechanisms of action of these compounds from in vitro studies; and 3) to evaluate the documented uses and potential applications of this species, in order to postulate on the direction of pharmaceutical uses of this species. Materials and methods: An extensive database retrieval was performed using the electronic databases Web of Science, PubMed, Google Scholar and ScienceDirect. The search criteria consisted of the keywords "Plectranthus ecklonii", "Plectranthus ecklonii + review", "Plectranthus ecklonii + diterpenes" or "Plectranthus ecklonii + abietanes", "ecklonii + parviflorone D", searched individually and as combinations. Eligibility criteria were set out and titles in English, Portuguese and Spanish were reviewed, with all references included dating from 1970 to 2021. A total of 169 papers were selected and included. Chemical structures were drawn using ChemDraw 20.0, CID numbers were searched in PubChem and the PRISMA diagram was created using PowerPoint 2012. Results: To date, a total of 28 compounds have been isolated from P. ecklonii, including diterpenes, triterpenes, flavonoids, and hydroxycinnamic acids. Most focused on the antimicrobial action of its constituents, although compounds have demonstrated other bioactivities, namely antioxidant, anti-inflammatory and antitumor. The most recent studies emphasize the diterpenoids, particularly parviflorone D, with the help of nanotechnology. Conclusions: The widespread ethnobotanical and traditional uses of P. ecklonii can be scientifically justified by a range of biological activities, demonstrated by isolated secondary metabolites. These bioactivities showcase the potential of this species in the development of economically important active pharmaceutical ingredients, particularly in anticancer therapy.
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Affiliation(s)
- Ana Ribeirinha Antão
- CBIOS -Research Center for Biosciences and Health Technologies, Universidade Lusófona de Humanidades e Tecnologias, Lisbon, Portugal
| | - Gabrielle Bangay
- CBIOS -Research Center for Biosciences and Health Technologies, Universidade Lusófona de Humanidades e Tecnologias, Lisbon, Portugal
- University of Alcalá de Henares, Faculty of Pharmacy, Department of Biomedical Sciences, Pharmacology Area (Pharmacognosy Laboratory), New Antitumor Compounds: Toxic Action on Leukemia Cells Research Group, Campus University, Alcalá de Henares, Spain
| | - Eva María Domínguez-Martín
- CBIOS -Research Center for Biosciences and Health Technologies, Universidade Lusófona de Humanidades e Tecnologias, Lisbon, Portugal
- University of Alcalá de Henares, Faculty of Pharmacy, Department of Biomedical Sciences, Pharmacology Area (Pharmacognosy Laboratory), New Antitumor Compounds: Toxic Action on Leukemia Cells Research Group, Campus University, Alcalá de Henares, Spain
| | - Ana María Díaz-Lanza
- University of Alcalá de Henares, Faculty of Pharmacy, Department of Biomedical Sciences, Pharmacology Area (Pharmacognosy Laboratory), New Antitumor Compounds: Toxic Action on Leukemia Cells Research Group, Campus University, Alcalá de Henares, Spain
| | - Patrícia Ríjo
- CBIOS -Research Center for Biosciences and Health Technologies, Universidade Lusófona de Humanidades e Tecnologias, Lisbon, Portugal
- Instituto de Investigação do Medicamento (iMed.ULisboa), Faculdade de Farmácia, University of Lisbon, Lisbon, Portugal
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Kentsop RAD, Iobbi V, Donadio G, Ruffoni B, De Tommasi N, Bisio A. Abietane Diterpenoids from the Hairy Roots of Salvia corrugata. Molecules 2021; 26:5144. [PMID: 34500582 PMCID: PMC8434070 DOI: 10.3390/molecules26175144] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/22/2021] [Accepted: 08/23/2021] [Indexed: 11/16/2022] Open
Abstract
Salvia corrugata Vahl. is an interesting source of abietane and abeo-abietane compounds that showed antibacterial, antitumor, and cytotoxic activities. The aim of the study was to obtain transformed roots of S. corrugata and to evaluate the production of terpenoids in comparison with in vivo root production. Hairy roots were initiated from leaf explants by infection with ATCC 15834 Agrobacterium rhizogenes onto hormone-free Murashige and Skoog (MS) solid medium. Transformation was confirmed by polymerase chain reaction analysis of rolC and virC1 genes. The biomass production was obtained in hormone-free liquid MS medium using Temporary Immersion System bioreactor RITA®. The chromatographic separation of the methanolic extract of the untransformed roots afforded horminone, ferruginol, 7-O-acetylhorminone and 7-O-methylhorminone. Agastol and ferruginol were isolated and quantified from the hairy roots. The amount of these metabolites indicated that the hairy roots of S. corrugata can be considered a source of these compounds.
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Affiliation(s)
- Roméo Arago Dougué Kentsop
- Dipartimento di Farmacia, Università di Genova, Viale Cembrano 4, 16148 Genova, Italy; (R.A.D.K.); (V.I.)
- Consiglio per la Ricerca e la Sperimentazione in Agricoltura—CREA Centro di Ricerca Orticoltura e Florovivaismo, Corso degli Inglesi, 508, 18038 Sanremo, Italy;
| | - Valeria Iobbi
- Dipartimento di Farmacia, Università di Genova, Viale Cembrano 4, 16148 Genova, Italy; (R.A.D.K.); (V.I.)
| | - Giuliana Donadio
- Dipartimento di Farmacia, Università di Salerno, Via Giovanni Paolo II 132, 84084 Salerno, Italy;
| | - Barbara Ruffoni
- Consiglio per la Ricerca e la Sperimentazione in Agricoltura—CREA Centro di Ricerca Orticoltura e Florovivaismo, Corso degli Inglesi, 508, 18038 Sanremo, Italy;
| | - Nunziatina De Tommasi
- Dipartimento di Farmacia, Università di Salerno, Via Giovanni Paolo II 132, 84084 Salerno, Italy;
| | - Angela Bisio
- Dipartimento di Farmacia, Università di Genova, Viale Cembrano 4, 16148 Genova, Italy; (R.A.D.K.); (V.I.)
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Alcyonium Octocorals: Potential Source of Diverse Bioactive Terpenoids. Molecules 2019; 24:molecules24071370. [PMID: 30965598 PMCID: PMC6479912 DOI: 10.3390/molecules24071370] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/03/2019] [Accepted: 04/04/2019] [Indexed: 01/13/2023] Open
Abstract
Alcyonium corals are benthic animals, which live in different climatic areas, including temperate, Antarctic and sub-Antarctic waters. They were found to produce different chemical substances with molecular diversity and unique architectures. These metabolites embrace several terpenoidal classes with different functionalities. This wide array of structures supports the productivity of genus Alcyonium. Yet, majority of the reported compounds are still biologically unscreened and require substantial efforts to explore their importance. This review is an entryway to push forward the bio-investigation of this genus. It covers the era from the beginning of reporting metabolites from Alcyonium up to March 2019. Ninety-two metabolites are presented; forty-two sesquiterpenes, twenty-five diterpenes and twenty-five steroids have been reported from sixteen species.
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Ali B, Ali M, Amin S, Mir SR. Enhancement of gut permeation of amoxicillin with Nigella sativa seed extract and its phytochemical screening. Chin J Nat Med 2018; 16:125-130. [PMID: 29455727 DOI: 10.1016/s1875-5364(18)30038-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Indexed: 11/16/2022]
Abstract
The seeds of Nigella sativa Linn. (Ranunculaceae), commonly known as Black cumin, are predominantly used as carminative, antispasmodic, and stimulant. The main objective of the present study was to evaluate the effect of N. sativa seed extract on the permeation of co-infused amoxicillin across the gut wall. The methanolic extract of N. sativa improved intestinal permeability of amoxicillin in in-vitro experiments in a dose-dependent manner. Two new glycosides, decanyl nigelloic acid diglucoside [n-decanyl-3-aldehydic-4-methoxy-5-hydroxy benzoate-5-β-D-glucofuranosyl (2→1)-β-D-glucopyranosyl-(2→1)-β-D-glucopyranoside]] and nigelabdienoyl triglucoside [homo-labd-5, 9(11)-dien-16-onyl-β-D-glucopyranosyl (2→1)-β-D-glucopyranosyl (2→1)-β-D-glucopyranoside], along with seven known fatty acid glycerides/esters, were isolated from the gut permeation enhancing extract. The structures of these new glycosides were elucidated by detailed spectroscopic analyses.
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Affiliation(s)
- Babar Ali
- College of Pharmacy and Dentistry, Buraydah Colleges, Buraydah, Al-Qassim, P.O. 31717, Kingdom of Saudi Arabia; Phytopharmaceuticals Research Lab, Department of Pharmacognosy and Phytochemistry, School of Pharmaceutical Education and Research (Formerly Faculty of Pharmacy), Jamia Hamdard, PO Hamdard Nagar, New Delhi-110062, India
| | - Mohammad Ali
- Phytopharmaceuticals Research Lab, Department of Pharmacognosy and Phytochemistry, School of Pharmaceutical Education and Research (Formerly Faculty of Pharmacy), Jamia Hamdard, PO Hamdard Nagar, New Delhi-110062, India
| | - Saima Amin
- Phytopharmaceuticals Research Lab, Department of Pharmacognosy and Phytochemistry, School of Pharmaceutical Education and Research (Formerly Faculty of Pharmacy), Jamia Hamdard, PO Hamdard Nagar, New Delhi-110062, India
| | - Showkat R Mir
- Phytopharmaceuticals Research Lab, Department of Pharmacognosy and Phytochemistry, School of Pharmaceutical Education and Research (Formerly Faculty of Pharmacy), Jamia Hamdard, PO Hamdard Nagar, New Delhi-110062, India.
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Wang H, Li MY, Katele FZ, Satyanandamurty T, Wu J, Bringmann G. Decandrinin, an unprecedented C9-spiro-fused 7,8-seco-ent-abietane from the Godavari mangrove Ceriops decandra. Beilstein J Org Chem 2014; 10:276-81. [PMID: 24605147 PMCID: PMC3943825 DOI: 10.3762/bjoc.10.23] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Accepted: 12/18/2013] [Indexed: 11/23/2022] Open
Abstract
Decandrinin (1), an unprecedented C9-spiro-fused 7,8-seco-ent-abietane, was obtained from the bark of an Indian mangrove, Ceriops decandra, collected in the estuary of Godavari, Andhra Pradesh. The constitution and the relative configuration of 1 were determined by HRMS (ESI) and extensive NMR investigations, and the absolute configuration by circular dichroism (CD) and optical-rotatory dispersion (ORD) spectroscopy in combination with quantum-chemical calculations. Decandrinin is the first 7,8-seco-ent-abietane.
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Affiliation(s)
- Hui Wang
- Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, 164 West Xingang Road, Guangzhou 510301, P. R. China
- Hubei Key Laboratory of Natural Products Research and Development, College of Chemistry and Life Science, China Three Gorges University, Yichang 443002, P. R. China
| | - Min-Yi Li
- Marine Drugs Research Center, College of Pharmacy, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, P. R. China
| | - Félix Zongwe Katele
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, Würzburg 97074, Germany
| | | | - Jun Wu
- Marine Drugs Research Center, College of Pharmacy, Jinan University, 601 Huangpu Avenue West, Guangzhou 510632, P. R. China
| | - Gerhard Bringmann
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, Würzburg 97074, Germany
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Rijo P, Duarte A, Francisco AP, Semedo-Lemsaddek T, Simões MF. In vitro
Antimicrobial Activity of Royleanone Derivatives Against Gram-Positive Bacterial Pathogens. Phytother Res 2013; 28:76-81. [DOI: 10.1002/ptr.4961] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Revised: 02/01/2013] [Accepted: 02/04/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Patrícia Rijo
- Faculdade de Farmácia da Universidade de Lisboa; Research Institute of Medicines and Pharmaceutical Sciences - iMed.UL; Av. Prof. Gama Pinto 1649-003 Lisboa Portugal
- CBios - Research Center for Health Sciences & Technologies (Lab. Pharmacology and Therapeutics); Universidade Lusófona; Campo Grande 376 1749-024 Lisboa Portugal
| | - Aida Duarte
- Faculdade de Farmácia da Universidade de Lisboa; Research Institute of Medicines and Pharmaceutical Sciences - iMed.UL; Av. Prof. Gama Pinto 1649-003 Lisboa Portugal
| | - Ana Paula Francisco
- Faculdade de Farmácia da Universidade de Lisboa; Research Institute of Medicines and Pharmaceutical Sciences - iMed.UL; Av. Prof. Gama Pinto 1649-003 Lisboa Portugal
| | - Teresa Semedo-Lemsaddek
- Faculdade de Medicina Veterinária, Centro de Investigação Interdisciplinar em Sanidade Animal; Universidade Técnica de Lisboa; Av. da Universidade Técnica 1300-477 Lisboa Portugal
| | - Maria Fátima Simões
- Faculdade de Farmácia da Universidade de Lisboa; Research Institute of Medicines and Pharmaceutical Sciences - iMed.UL; Av. Prof. Gama Pinto 1649-003 Lisboa Portugal
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Zhang T, Zhang CX, Xie WD, Row KH. Vitrifolin A: A Norlabdane Diterpenoid from the Fruits ofVitex trifoliaLinn. var.simplicifoliaCham. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.201200239] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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8
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Lee JH, Deng L. Asymmetric approach toward chiral cyclohex-2-enones from anisoles via an enantioselective isomerization by a new chiral diamine catalyst. J Am Chem Soc 2012; 134:18209-12. [PMID: 23043531 PMCID: PMC3492513 DOI: 10.1021/ja308623n] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
A 3-step asymmetric approach toward the optically active chiral cyclohex-2-enones from anisoles has been developed. The crucial asymmetric induction step is an unprecedented catalytic enantioselective isomerization of β,γ-unsaturated cyclohex-3-en-1-ones to the corresponding α,β-unsaturated chiral enones. This new asymmetric transformation was realized by cooperative iminium-base catalysis with an electronically tunable new organic catalyst. The synthetic utility of this methodology is highlighted by the enantioselective total synthesis of (-)-isoacanthodoral.
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Affiliation(s)
- Jung Hwa Lee
- Department of Chemistry, Brandeis University, Waltham, Massachusetts 02454-9110, United States
| | - Li Deng
- Department of Chemistry, Brandeis University, Waltham, Massachusetts 02454-9110, United States
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Affiliation(s)
- Xiaozu Liu
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen University Town, Xili, Shenzhen 518055, China
| | - Chi-Sing Lee
- Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen University Town, Xili, Shenzhen 518055, China
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Merritt AT, Pouwer RH, Williams DJ, Williams CM, Ley SV. The clerodane ring system: investigating the viability of a direct Diels–Alder approach. Org Biomol Chem 2011; 9:4745-7. [DOI: 10.1039/c1ob05422h] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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First Example of Diterpenoids from 14,15-Cyclopimarane in the Roots of Linum usitatissimum. Helv Chim Acta 2009. [DOI: 10.1002/hlca.200900104] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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12
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Rijo P, Simões MF, Duarte A, Rodríguez B. Isopimarane diterpenoids from Aeollanthus rydingianus and their antimicrobial activity. PHYTOCHEMISTRY 2009; 70:1161-1165. [PMID: 19631355 DOI: 10.1016/j.phytochem.2009.06.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2009] [Revised: 06/08/2009] [Accepted: 06/11/2009] [Indexed: 05/28/2023]
Abstract
Four acyloxy-isopimarane derivatives along with two known isopimarane diterpenoids, the flavone cirsimaritin and the sterols beta-sitosterol and stigmasterol were isolated from the aerial parts of Aeollanthus rydingianus. The structures of the compounds were established on the basis of spectroscopic analysis and chemical evidence. The isolated substances were screened for antimicrobial activity against Gram-positive and Gram-negative bacteria and a yeast strain. 19-Acetoxy-7,15-isopimaradien-3beta-ol and 7,15-isopimaradien-19-ol showed minimum inhibitory concentration (MIC) values of 3.90-15.62 microg/ml for Staphylococcus aureus and of 7.81microg/ml for Enterococcus hirae.
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Affiliation(s)
- Patricia Rijo
- Faculdade de Farmácia da Universidade de Lisboa, iMed. UL, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Maria Fátima Simões
- Faculdade de Farmácia da Universidade de Lisboa, iMed. UL, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Aida Duarte
- Faculdade de Farmácia da Universidade de Lisboa, iMed. UL, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Benjamín Rodríguez
- Instituto de Química Orgánica, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain.
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Tietze L, Brazel C, Hölsken S, Magull J, Ringe A. Totalsynthese polyoxygenierter Cembrene. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200800626] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Min SJ, Danishefsky SJ. An Approach to the Synthesis of Tricholomalide A: An Effective Means for Achieving Homo-Robinson Annulation. Tetrahedron Lett 2008; 49:3496-3499. [PMID: 19461989 DOI: 10.1016/j.tetlet.2008.03.101] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
A procedure has been developed for the construction of 7,5-fused ring systems through ring expansion of silyl enol ethers. This method has been applied to the synthesis of an intermediate en route to the natural product, tricholomalide A.
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Affiliation(s)
- Sun-Joon Min
- Department of Chemistry, Columbia University, 3000 Broadway, New York, NY 10027, USA
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Hsu DS, Hsu PY, Lee YC, Liao CC. Stereocontrolled Synthesis of Polyfunctionalized cis-Decalins from 2-Methoxyphenols: Total Syntheses of (±)-Eremopetasidione, (±)-3β-Angeloyloxyfuranoeremophilane, and (±)-3β-Methacryloyloxyfuranoeremophilane. J Org Chem 2008; 73:2554-63. [DOI: 10.1021/jo702115x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Day-Shin Hsu
- Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan 300
| | - Po-Yi Hsu
- Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan 300
| | - Yen-Chun Lee
- Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan 300
| | - Chun-Chen Liao
- Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan 300
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Novel synthetic strategy toward abietane and podocarpane-type diterpenes from (−)-sclareol: synthesis of the antitumor (+)-7-deoxynimbidiol. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.10.080] [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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18
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Moussaieff A, Shohami E, Kashman Y, Fride E, Schmitz ML, Renner F, Fiebich BL, Munoz E, Ben-Neriah Y, Mechoulam R. Incensole Acetate, a Novel Anti-Inflammatory Compound Isolated fromBoswelliaResin, Inhibits Nuclear Factor-κB Activation. Mol Pharmacol 2007; 72:1657-64. [PMID: 17895408 DOI: 10.1124/mol.107.038810] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Boswellia resin is a major anti-inflammatory agent in herbal medical tradition, as well as a common food supplement. Its anti-inflammatory activity has been attributed to boswellic acid and its derivatives. Here, we re-examined the anti-inflammatory effect of the resin, using inhibitor of nuclear factor-kappaB alpha (IkappaB alpha) degradation in tumor necrosis factor (TNF) alpha-stimulated HeLa cells for a bioassay-guided fractionation. We thus isolated two novel nuclear factor-kappaB (NF-kappaB) inhibitors from the resin, their structures elucidated as incensole acetate (IA) and its nonacetylated form, incensole (IN). IA inhibited TAK/TAB-mediated IkappaB kinase (IKK) activation loop phosphorylation, resulting in the inhibition of cytokine and lipopolysaccharide-mediated NF-kappaB activation. It had no effect on IKK activity in vitro, and it did not suppress IkappaB alpha phosphorylation in costimulated T-cells, indicating that the kinase inhibition is neither direct nor does it affect all NF-kappaB activation pathways. The inhibitory effect seems specific; IA did not interfere with TNFalpha-induced activation of c-Jun N-terminal kinase (JNK) and p38 mitogen-activated protein kinase. IA treatment had a robust anti-inflammatory effect in a mouse inflamed paw model. Cembrenoid diterpenoids, specifically IA and its derivatives, may thus constitute a potential novel group of NF-kappaB inhibitors, originating from an ancient anti-inflammatory herbal remedy.
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Affiliation(s)
- Arieh Moussaieff
- Department of Medicinal Chemistry and Natural Products, Medical Faculty, Hebrew University, Jerusalem 91120, Israel.
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Rodgen SA, Schaus SE. Efficient construction of the clerodane decalin core by an asymmetric Morita-Baylis-Hillman reaction/Lewis acid promoted annulation strategy. Angew Chem Int Ed Engl 2007; 45:4929-32. [PMID: 16802391 DOI: 10.1002/anie.200601076] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Stacy A Rodgen
- Department of Chemistry, Metcalf Center for Science and Engineering, Boston University, 590 Commonwealth Avenue, Boston, Massachusetts 02215, USA
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Rosselli S, Bruno M, Maggio A, Bellone G, Chen TH, Bastow KF, Lee KH. Cytotoxic activity of some natural and synthetic ent-kauranes. JOURNAL OF NATURAL PRODUCTS 2007; 70:347-52. [PMID: 17378530 DOI: 10.1021/np060504w] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Atractyligenin (1) and several synthetic derivatives were tested and found to be active against tumor cell replication. Compound 1 was readily converted to the 2,15-diketo (3) or 15-keto (4) derivatives, which contain an alpha,beta-unsaturated ketone. Compounds 3 and 4 showed significant cytotoxic activity against all six tested cancer cell lines and were most potent against 1A9 ovarian cancer cells with EC50 values of 0.2 and 0.3 microM, respectively. These two 1-analogues are promising lead compounds for further investigation.
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Affiliation(s)
- Sergio Rosselli
- Dipartimento di Chimica Organica, Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy
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Buzas AK, Istrate FM, Gagosz F. Gold(I)-Catalyzed 5-endo Hydroxy- and Alkoxycyclization of 1,5-Enynes: Efficient Access to Functionalized Cyclopentenes. Angew Chem Int Ed Engl 2007; 46:1141-4. [PMID: 17163559 DOI: 10.1002/anie.200604140] [Citation(s) in RCA: 135] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Andrea K Buzas
- Laboratoire de Synthèse Organique, UMR 7652 CNRS/Ecole Polytechnique, 91128 Palaiseau, France
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Buzas A, Istrate F, Gagosz F. Gold(I)-Catalyzed 5-endo Hydroxy- and Alkoxycyclization of 1,5-Enynes: Efficient Access to Functionalized Cyclopentenes. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200604140] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Yang HJ, Li BG, Cai XH, Qi HY, Luo YG, Zhang GL. Chiral decalins: preparation from oleanolic acid and application in the synthesis of (-)-9-epi-ambrox. JOURNAL OF NATURAL PRODUCTS 2006; 69:1531-8. [PMID: 17125216 DOI: 10.1021/np060159a] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
A novel and versatile process was developed to prepare the trans-decalins Delta9(11)-3beta-acetoxysclareolide (2) and Delta9(11)-3beta-acetoxy-8-epi-sclareolide (3), respectively, with 4a-methoxycarbonyl-2,7,7-trimethyl-1-oxo-cis-decalin-2-ene (4) and its C-3 hydroxyl derivative 5 from oleanolic acid (3beta-hydroxyolean-12-en-28-oic acid, 1). Three key steps were (a) introduction of the AcO-12 group and the C-9,C-11 double bond at ring C of methyl 3beta-acetoxyolean-12-en-28-oate (8) to afford the diene, methyl 3,12-diacetoxyolean-9(11),12-dien-28-oate (11); (b) photolytic cleavage of the C-8,C-14 bond in the diene to give an acetoxy-substituted triene 14; and (c) oxidative cleavage of the triene or its hydrolyzed alpha,beta-unsaturated ketone product with m-CPBA/TsOH to give the cis- and trans-decalins 2-5. Delata9(11)-3beta-Acetoxysclareolide (2) was stereospecifically reduced to give 3beta-acetoxy-9-epi-sclareolide (23), from which (-)-9-epi-ambrox (7) was synthesized.
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Affiliation(s)
- Hai-Jun Yang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, People's Republic of China
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24
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Synthetic studies towards the ent-labdane diterpenoids: rearrangement of ent-halimanes. Molecules 2006; 11:792-807. [PMID: 17971756 DOI: 10.3390/11100792] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2006] [Revised: 10/18/2006] [Accepted: 10/23/2006] [Indexed: 11/16/2022] Open
Abstract
For the first time ent-labdanes have been synthetised starting from ent-halimic acid, following a route that is the reverse of the biosynthetic one leading to the former compounds.
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25
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Rodgen SA, Schaus SE. Efficient Construction of the Clerodane Decalin Core by an Asymmetric Morita–Baylis–Hillman Reaction/Lewis Acid Promoted Annulation Strategy. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200601076] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Robert F, Gao HQ, Donia M, Merrick WC, Hamann MT, Pelletier J. Chlorolissoclimides: new inhibitors of eukaryotic protein synthesis. RNA (NEW YORK, N.Y.) 2006; 12:717-25. [PMID: 16540697 PMCID: PMC1440909 DOI: 10.1261/rna.2346806] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Lissoclimides are cytotoxic compounds produced by shell-less molluscs through chemical secretions to deter predators. Chlorinated lissoclimides were identified as the active component of a marine extract from Pleurobranchus forskalii found during a high-throughput screening campaign to characterize new protein synthesis inhibitors. It was demonstrated that these compounds inhibit protein synthesis in vitro, in extracts prepared from mammalian and plant cells, as well as in vivo against mammalian cells. Our results suggest that they block translation elongation by inhibiting translocation, leading to an accumulation of ribosomes on mRNA. These data provide a rationale for the cytotoxic nature of this class of small molecule natural products.
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Affiliation(s)
- Francis Robert
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada
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27
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Abstract
This review covers the isolation and structures of diterpenoids, including labdanes, clerodanes,pimaranes, abietanes, kauranes, cembranolides, taxanes and marine diterpenoids. The literature from January to December 2005 is reviewed, and 195 references are cited.
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Affiliation(s)
- James R Hanson
- Department of Chemistry, University of Sussex, Brighton, Sussex BN1 9QJ, UK
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28
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Liu Y, Zhang S, Abreu PJM. Heterocyclic terpenes: linear furano- and pyrroloterpenoids. Nat Prod Rep 2006; 23:630-51. [PMID: 16874393 DOI: 10.1039/b604586c] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Yonghong Liu
- Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510-301, China.
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