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Mu H, Tang S, Zuo Q, Huang M, Zhao W. Dihydro-β-agarofuran-Type Sesquiterpenoids from the Seeds of Celastrus virens and Their Multidrug Resistance Reversal Activity against the KB/VCR Cell Line. JOURNAL OF NATURAL PRODUCTS 2021; 84:588-600. [PMID: 33683135 DOI: 10.1021/acs.jnatprod.0c01182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Twenty-nine dihydro-β-agarofuran-type sesquiterpenoids, including 17 new and 12 known compounds, were obtained from the seeds of Celastrus virens. The structures of the new isolates were characterized by spectroscopic methods and X-ray diffraction analysis. Among these, 20 sesquiterpenoids were evaluated for their multidrug resistance (MDR) reversal activity against the KB/VCR cell line. As a result, compounds 6 and 8 were found to exhibit MDR-reversal activity of more than 10-fold at a concentration of 2 μM, and the reversal fold (RF) ratios of compounds 19, 21, and 24 were >97.9 at a 20 μM nontoxic concentration level.
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Affiliation(s)
- Hongyan Mu
- Department of Natural Products Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Shuai Tang
- Division of Antitumor Pharmacology and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, People's Republic of China
| | - Quan Zuo
- Department of Natural Products Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Min Huang
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- Division of Antitumor Pharmacology and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
| | - Weimin Zhao
- Department of Natural Products Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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2
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Fu Y, Wang W, Gong Q, Zhang H, Zhao W. Neuroprotective Dihydro-β-agarofuran-Type Sesquiterpenes from the Seeds of Euonymus maackii. JOURNAL OF NATURAL PRODUCTS 2019; 82:3096-3103. [PMID: 31713425 DOI: 10.1021/acs.jnatprod.9b00701] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Twenty-one dihydro-β-agarofuran derivatives were purified from the seeds of Euonymus maackii, and eight compounds (1-8) were identified as new natural products. Their structures were deduced by extensive spectroscopic analysis, X-ray diffraction studies, and comparison of observed and reported NMR data. Compounds 10, 12, 17, and 18 significantly increased the cell viability of Aβ25-35-treated SH-SY5Y cells with effects similar to that of epigallocatechin gallate (EGCG). In addition, the abundant compound 9 reduced the seizure-like locomotor activity of zebrafish at 10 μM compared with a pentylenetetrazol-treated group.
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Affiliation(s)
- Yifan Fu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | - Wei Wang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , People's Republic of China
| | - Qi Gong
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , People's Republic of China
| | - Haiyan Zhang
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , People's Republic of China
| | - Weimin Zhao
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , People's Republic of China
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3
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Wibowo M, Wang Q, Holst J, White JM, Hofmann A, Davis RA. Celastrofurans A-G: Dihydro-β-agarofurans from the Australian Rainforest Vine Celastrus subspicata and Their Inhibitory Effect on Leucine Transport in Prostate Cancer Cells. JOURNAL OF NATURAL PRODUCTS 2017; 80:1918-1925. [PMID: 28548851 DOI: 10.1021/acs.jnatprod.7b00220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Seven new dihydro-β-agarofurans, celastrofurans A-G (1-7), along with two known secondary metabolites, 9β-benzoyloxy-1α-furoyloxydihydro-β-agarofuran (8) and (1R,2R,4R,5S,7R,9S,10R)-2-acetoxy-9-benzoyloxy-1-furoyloxydihydro-β-agarofuran (9), were obtained from the leaves of the Australian rainforest vine, Celastrus subspicata. The structures of the new compounds were determined by detailed spectroscopic (1D/2D NMR) and MS data analysis. The absolute configurations of compounds 1-4 were defined by ECD and single-crystal X-ray diffraction studies. All compounds were found to exhibit inhibitory activity on leucine transport in the human prostate cancer cell line LNCaP with IC50 values ranging from 7.0 to 98.9 μM. Dihydro-β-agarofurans 1-9 showed better potency than the L-type amino acid transporter (LAT) family inhibitor, 2-aminobicyclo[2.2.1]-heptane-2-carboxylic acid (BCH).
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Affiliation(s)
- Mario Wibowo
- Griffith Institute for Drug Discovery, Griffith University , Brisbane, QLD 4111, Australia
| | - Qian Wang
- Origins of Cancer Program, Centenary Institute, University of Sydney , Camperdown, NSW 2050, Australia
- Sydney Medical School, University of Sydney , NSW 2006, Australia
| | - Jeff Holst
- Origins of Cancer Program, Centenary Institute, University of Sydney , Camperdown, NSW 2050, Australia
- Sydney Medical School, University of Sydney , NSW 2006, Australia
| | | | - Andreas Hofmann
- Griffith Institute for Drug Discovery, Griffith University , Brisbane, QLD 4111, Australia
| | - Rohan A Davis
- Griffith Institute for Drug Discovery, Griffith University , Brisbane, QLD 4111, Australia
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Zhou J, Han N, Lv G, Jia L, Liu Z, Yin J. Two New β-Dihydroagarofuran Sesquiterpenes from Celastrus orbiculatus Thunb and Their Anti-Proliferative Activity. Molecules 2017; 22:E948. [PMID: 28598409 PMCID: PMC6152708 DOI: 10.3390/molecules22060948] [Citation(s) in RCA: 7] [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: 05/10/2017] [Revised: 06/05/2017] [Accepted: 06/05/2017] [Indexed: 11/16/2022] Open
Abstract
Two new β-dihydroagarofuran-type sesquiterpenes (1-2) were isolated and identified from the fruit of Celastrus orbiculatus Thunb, together with seventeen known compounds (3-19). The structures of the isolated new compounds were elucidated based on extensive spectroscopic analyses. The cytotoxic activities of the 19 sesquiterpenes on three cell lines, human acute promyelocytic leukemia HL-60, human leukemic K562, and human colon cancer HCT-116 cells, were evaluated in vitro. Compound 4 exhibited potent cytotoxic activity against HL-60, K562, and HCT116 cell lines with IC50 values of 3.61 μΜ, 17.13 μΜ and 10.15 μΜ, respectively, and the other compounds displayed moderate activity.
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Affiliation(s)
- Jingjing Zhou
- Department of Pharmacognosy and Utilization Key Laboratory of Northeast Plant Materials, School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Na Han
- Department of Pharmacognosy and Utilization Key Laboratory of Northeast Plant Materials, School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Guanghui Lv
- Department of Pharmacognosy and Utilization Key Laboratory of Northeast Plant Materials, School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Lina Jia
- School of Life Science and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Zhihui Liu
- Department of Pharmacognosy and Utilization Key Laboratory of Northeast Plant Materials, School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang 110016, China.
| | - Jun Yin
- Department of Pharmacognosy and Utilization Key Laboratory of Northeast Plant Materials, School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang 110016, China.
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Perestelo NR, Jiménez IA, Tokuda H, Vázquez JT, Ichiishi E, Bazzocchi IL. Absolute Configuration of Dihydro-β-agarofuran Sesquiterpenes from Maytenus jelskii and Their Potential Antitumor-Promoting Effects. JOURNAL OF NATURAL PRODUCTS 2016; 79:2324-2331. [PMID: 27541714 DOI: 10.1021/acs.jnatprod.6b00469] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Chemoprevention of human cancer appears to be a feasible strategy for cancer control, especially when chemopreventive intervention is involved during early stages of the carcinogenesis process. As a part of our ongoing research program into new chemopreventive agents, herein are reported the isolation, structural elucidation, and biological evaluation of 10 new (1-10) and three known (11-13) sesquiterpenes with a dihydro-β-agarofuran skeleton from the leaves of Maytenus jelskii Zahlbr. Their stereostructures have been elucidated by means of spectroscopic analysis, including 1D and 2D NMR techniques, ECD studies, and biogenetic considerations. The isolated metabolites and eight previously reported sesquiterpenes (14-21) were screened for their antitumor-promoting activity using a short-term in vitro assay for Epstein-Barr virus early antigen (EBV-EA) activation induced by 12-O-tetradecanoylphorbol-13-acetate (TPA). Six compounds from this series (4, 5, 11, and 13-15) were found to exhibit higher efficacies than β-carotene, used as reference inhibitor for EBV-EA activation. In particular, promising antitumor activity was observed for compound 5, exhibiting inhibition even at the lowest concentration assayed (10 mol ratio/TPA). Preliminary structure-activity relationship analysis revealed that the acetate, benzoate, and hydroxy groups are the most desirable substituents on the sesquiterpene scaffold for activity in the EBV-EA activation assay.
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Affiliation(s)
- Nayra R Perestelo
- Instituto Universitario de Bio-Orgánica Antonio González, Departamento de Química Orgánica, and Instituto Canario de Investigación del Cáncer, Universidad de La Laguna , Avenida Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain
| | - Ignacio A Jiménez
- Instituto Universitario de Bio-Orgánica Antonio González, Departamento de Química Orgánica, and Instituto Canario de Investigación del Cáncer, Universidad de La Laguna , Avenida Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain
| | - Harukuni Tokuda
- Organic Chemistry in Life Science, Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University , Kyoto 606-8502, Japan
| | - Jesús T Vázquez
- Instituto Universitario de Bio-Orgánica Antonio González, Departamento de Química Orgánica, and Instituto Canario de Investigación del Cáncer, Universidad de La Laguna , Avenida Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain
| | - Eiichiro Ichiishi
- Department of Internal Medicine, International University of Health and Welfare Hospital, Nasushiobara , Tochigi 329-2763, Japan
| | - Isabel L Bazzocchi
- Instituto Universitario de Bio-Orgánica Antonio González, Departamento de Química Orgánica, and Instituto Canario de Investigación del Cáncer, Universidad de La Laguna , Avenida Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain
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6
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Dihydro-β-agarofuran sesquiterpenes from celastraceae species as anti-tumour-promoting agents: Structure-activity relationship. Eur J Med Chem 2016; 111:95-102. [DOI: 10.1016/j.ejmech.2016.01.049] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 01/25/2016] [Accepted: 01/28/2016] [Indexed: 11/20/2022]
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7
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Further Study on Chemical Constituents of Parnassia wightiana Wall: Four New Dihydro-β-agarofuran Sesquiterpene Polyesters. Int J Mol Sci 2015; 16:9119-33. [PMID: 25915027 PMCID: PMC4463581 DOI: 10.3390/ijms16059119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 04/14/2015] [Accepted: 04/15/2015] [Indexed: 11/23/2022] Open
Abstract
Four new (1–4), along with six known (5–10) dihydro-β-agarofuran sesquiterpene polyesters were isolated from the whole plants of Parnassia wightiana. The new compounds were structurally elucidated through spectroscopic analysis including UV (Ultraviolet Spectrum), IR (Infrared Spectrum), 1H-NMR (1Hydrogen-Nuclear Magnetic Resonance), 13C-NMR (13Carbon-Nuclear Magnetic Resonance), DEPT (Distortionless Enhancement by Polarization Transfer), 1H-1H COSY (1H-1H Correlation Spectroscopy), HSQC (Heteronuclear Single Quantum Coherence), HMBC (Heteronuclear Multiple Bond Correlation), NOESY (Nuclear Overhauser Enhancement Spectroscopy) and HR-MS (High Resolution Mass Specttrum) and their absolute configurations were proposed by comparison of NOESY spectra and specific optical rotations with those of known compounds and biosynthesis grounds. Compound 2 is the first sesquiterpene alkaloid isolated from this plant. New compounds 1–4 exhibited some cytotoxic activities against NB4, MKN-45 and MCF-7 cells at 20 μM and of which 4 showed the highest activity against NB4 and MKN-45 cells with inhibition rates of 85.6% and 30.5%, respectively.
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Kumaran RS, Mehta G. An enantiodivergent protocol from R-(−)-carvone: synthesis of dihydroagarofuran sesquiterpenoid 1-deacetoxy-ent-orbiculin A. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.01.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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9
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A versatile, RCM based approach to eudesmane and dihydroagarofuran sesquiterpenoids from (−)-carvone: a formal synthesis of (−)-isocelorbicol. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.01.039] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Gutiérrez-Nicolás F, Oberti JC, Ravelo ÁG, Estévez-Braun A. β-Agarofurans and Sesquiterpene Pyridine Alkaloids from Maytenus spinosa. JOURNAL OF NATURAL PRODUCTS 2014; 77:1853-1863. [PMID: 25057904 DOI: 10.1021/np500317t] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Nine new β-dihydroagarofurans (1-9) and four new sesquiterpene pyridine alkaloids (10-13) were isolated from the leaves of Maytenus spinosa. Their structures were determined mainly by 1D- and 2D-NMR spectroscopic studies. The absolute configuration of compound 6 was established using CD spectroscopy. Several derivatives (14-20) were prepared from the sesquiterpene 13. Most of the sesquiterpenoids were tested for anti-HIV activity, but only compound 1 was found to be active.
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Affiliation(s)
- Fátima Gutiérrez-Nicolás
- Instituto Universitario de Bio-Orgánica Antonio González (CIBICAN), Departamento de Química Orgánica, Universidad de La Laguna , La Laguna 38206, Tenerife, Spain
- Facultad de Ciencias Químicas, Universidad Nacional de Córdoba , Córdoba X5000HUA, Argentina
| | - Juan C Oberti
- Facultad de Ciencias Químicas, Universidad Nacional de Córdoba , Córdoba X5000HUA, Argentina
- Instituto Multidisciplinar de Biología Vegetal (IMBIV; CONICET-UNC ), Casilla de Correo 495, Córdoba X5000HUA, Argentina
| | - Ángel G Ravelo
- Instituto Universitario de Bio-Orgánica Antonio González (CIBICAN), Departamento de Química Orgánica, Universidad de La Laguna , La Laguna 38206, Tenerife, Spain
| | - Ana Estévez-Braun
- Instituto Universitario de Bio-Orgánica Antonio González (CIBICAN), Departamento de Química Orgánica, Universidad de La Laguna , La Laguna 38206, Tenerife, Spain
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11
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Lv C, Zheng ZL, Miao F, Geng HL, Zhou L, Liu LP. New dihydro-β-agarofuran sesquiterpenes from Parnassia wightiana wall: isolation, identification and cytotoxicity against cancer cells. Int J Mol Sci 2014; 15:11111-25. [PMID: 24955789 PMCID: PMC4100202 DOI: 10.3390/ijms150611111] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 06/01/2014] [Accepted: 06/04/2014] [Indexed: 11/16/2022] Open
Abstract
Five new (4-8) and three known (1-3) dihydro-β-agarofuran sesquiterpene polyesters were isolated from the whole plants of Parnassia wightiana. The structures of all compounds were elucidated through spectroscopic analysis including 2D-NMR and HR-MS. The absolute configuration of these compounds was established by X-ray diffraction analysis, comparison of NOESY spectra and biogenetic means. The cytotoxities of compounds 2-8 were evaluated in vitro against HL-60, SMMC-7721, A549, MCF-7 and SW480 cell lines. Compounds 5-7 exhibited the highest activities with IC₅₀ values of 11.8-30.1 μM in most cases. The SAR revealed that the introduction of hydroxyl group was able to significantly improve the activities of the compounds for most of the cell lines.
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Affiliation(s)
- Chao Lv
- College of Science, Northwest A&F University, Yangling 712100, China.
| | - Zuo-Lue Zheng
- College of Science, Northwest A&F University, Yangling 712100, China.
| | - Fang Miao
- College of Life Science, Northwest A&F University, Yangling 712100, China.
| | - Hui-Ling Geng
- College of Science, Northwest A&F University, Yangling 712100, China.
| | - Le Zhou
- College of Science, Northwest A&F University, Yangling 712100, China.
| | - La-Ping Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China.
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12
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Cytotoxic diterpenes from roots of Crossopetalum gaumeri, a Celastraceae species from Yucatan Peninsula. Bioorg Med Chem Lett 2014; 24:2105-9. [DOI: 10.1016/j.bmcl.2014.03.051] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 03/13/2014] [Accepted: 03/17/2014] [Indexed: 11/20/2022]
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13
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Cui H, Xu B, Wu T, Xu J, Yuan Y, Gu Q. Potential antiviral lignans from the roots of Saururus chinensis with activity against Epstein-Barr virus lytic replication. JOURNAL OF NATURAL PRODUCTS 2014; 77:100-10. [PMID: 24359277 DOI: 10.1021/np400757k] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Epstein-Barr virus (EBV) is a member of the γ-herpes virus subfamily and has been implicated in the pathogenesis of several human malignancies. Bioassay-guided fractionation was conducted on an EtOAc-soluble extract of the roots of Saururus chinensis and monitored using an EBV lytic replication assay. This led to the isolation of 19 new (1-19) and nine known (20-28) lignans. The absolute configurations of the new lignans were established by Mosher's ester, ECD, and computational methods. Eight lignans, including three sesquineolignans (19, 23, and 24) and five dineolignans (3, 4, 26, 27, and 28), exhibited inhibitory effects toward EBV lytic replication with EC50 values from 1.09 to 7.55 μM and SI values from 3.3 to 116.4. In particular, manassantin B (27) exhibited the most promising inhibition, with an EC50 of 1.72 μM, low cytotoxicity, CC50 > 200 μM, and SI > 116.4. This is the first study demonstrating that lignans possess anti-EBV lytic replication activity.
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Affiliation(s)
- Hui Cui
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University , Guangzhou 510006, People's Republic of China
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14
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Perestelo NR, Jiménez IA, Tokuda H, Hayashi H, Bazzocchi IL. Sesquiterpenes from Maytenus jelskii as potential cancer chemopreventive agents. JOURNAL OF NATURAL PRODUCTS 2010; 73:127-132. [PMID: 20146433 DOI: 10.1021/np900476a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Seven new (1-4 and 7-9) sesquiterpenes with a dihydro-beta-agarofuran skeleton, along with four known compounds (5, 6, 10, and 11), have been isolated from the leaves of Maytenus jelskii. The structures of the new compounds were elucidated by means of spectroscopic data analysis, including 1D and 2D NMR techniques, and their absolute configurations were determined by circular dichroism and chemical correlations. The compounds have been tested for their inhibitory effects on Epstein-Barr virus early antigen (EBV-EA) activation induced by 12-O-tetradecanoylphorbol-13-acetate (TPA). Compound 10 was found to be an effective antitumor-promoting agent and also showed a potent chemopreventive effect in an in vivo two-stage carcinogenesis model.
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Affiliation(s)
- Nayra R Perestelo
- Instituto Universitario de Bio-Organica Antonio Gonzalez, Universidad de La Laguna, Avenida Astrofisico Francisco Sanchez 2, La Laguna, 38206 Tenerife, Canary Islands, Spain
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15
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Zhu Y, Miao Z, Ding J, Zhao W. Cytotoxic dihydroagarofuranoid sesquiterpenes from the seeds of Celastrus orbiculatus. JOURNAL OF NATURAL PRODUCTS 2008; 71:1005-1010. [PMID: 18507472 DOI: 10.1021/np800052d] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A chemical study on the seeds of Celastrus orbiculatus has led to the isolation of nine new (1- 9) and 13 known dihydro-beta-agarofuran derivatives. The identification and structural elucidation of the new compounds were based on spectroscopic data analysis, and the absolute configurations of compounds 1- 6, 8-10, and 16, as well as derivatives 2a and 6a, were determined by CD studies or by chemical methods. All compounds isolated were evaluated for cytotoxic activity against HL-60 human leukemia cells.
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Affiliation(s)
- Yingdong Zhu
- Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
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16
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Abstract
Dihydro-Beta-agarofuran sesquiterpenoids are a structurally diverse class of natural products based on tricyclic 5,11-epoxy-5Beta,10alpha-eudesman-4-(14)-ene skeleton. Between January 1990 and June 2006, 462 new dihydro-Beta-agarofuran sesquiterpenoids of 74 structural types have been isolated from about 64 species of Celastraceae, 3 species of Hippocrateaceae and one species of Lamiaceae. The present review covers the chemical and biological activity research of dihydro-Beta-agarofuran sesquiterpenoids in the past 16 years. The chemical research includes structural classification into sesquiterpene polyesters and macrolide sesquiterpene pyridine alkaloids, synthesis of dihydro-Beta-agarofuran as well as extraction, isolation and purification methods. The biological activity research includes activities such as multidrug resistance (MDR) reversal activity, HIV inhibition, cytotoxicity, antitumor activity, antifeedant activity and insecticidal activity with some insights to their modes of actions.
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Affiliation(s)
- Jin-Ming Gao
- College of Sciences, Northwest A & F University, Yangling, Shaanxi 712100, China.
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17
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Muñoz-Martínez F, Mendoza CR, Bazzocchi IL, Castanys S, Jiménez IA, Gamarro F. Reversion of Human Pgp-Dependent Multidrug Resistance by New Sesquiterpenes from Zinowiewia costaricensis. J Med Chem 2005; 48:4266-75. [PMID: 15974580 DOI: 10.1021/jm058003f] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In an intensive study of South American medicinal plants, herein we report the isolation, structure elucidation and biological activity of fourteen new and five known dihydro-beta-agarofuran sesquiterpenes from the leaves of Zinowiewia costaricensis (1-19). Their structures were determined by means of (1)H and (13)C NMR spectroscopic studies, including homonuclear and heteronuclear correlation experiments. The absolute configurations of the new compounds were determined by CD studies, chemical correlations or biogenetic grounds. All the natural compounds and derivative 20 have been tested on human MDR1-transfected NIH-3T3 cells, to determine their ability to revert the multidrug resistance phenotype due to P-glycoprotein overexpression. Six compounds from this series (1, 8, 11, 12, 13 and 14) showed similar effectiveness to the classical P-glycoprotein modulator verapamil when reversing resistance to daunorubicin, but it is up to sixteen times greater than that of verapamil when reversing resistance to vinblastine. The structure-activity relationships are discussed.
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Affiliation(s)
- Francisco Muñoz-Martínez
- Instituto de Parasitología y Biomedicina López-Neyra, Consejo Superior de Investigaciones Científicas, Parque Tecnológico de Ciencias de la Salud, Avda. del Conocimiento s/n, 18100 Armilla, Granada, Spain
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18
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Mendoza CR, Jiménez IA, Tokuda H, Kushida H, Bazzocchi IL. Antitumor-Promoting Effects of New Sesquiterpenes fromCrossopetalum tonduzii. Chem Biodivers 2005; 2:286-94. [PMID: 17191981 DOI: 10.1002/cbdv.200590011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Seven new sesquiterpenes (1-7) with a 'dihydro-beta-agarofuran' (= 5,11-epoxy-5beta,10alpha-eudesmane) skeleton were isolated from Crossopetalum tonduzii. Their structures were elucidated spectroscopically, especially by means of homo- and heteronuclear NMR correlation (COSY, ROESY, HSQC, and HMBC). The absolute configurations of the new compounds were determined by circular dichroism (CD) studies and by chemical correlations via the derivatives 8-11. The new compounds showed moderate antitumor-promoting effects with respect to the activation of the Epstein-Barr virus early antigen (EBV-EA).
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Affiliation(s)
- Cristina R Mendoza
- Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna, Avenida Astrofísico Francisco Sánchez 2, La Laguna, 38206 Tenerife
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