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Rao QR, Rao JB, Zhao M. The specialized sesquiterpenoids produced by the genus Elephantopus L.: Chemistry, biological activities and structure-activity relationship exploration. PHYTOCHEMISTRY 2024; 221:114041. [PMID: 38442848 DOI: 10.1016/j.phytochem.2024.114041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 02/23/2024] [Accepted: 02/25/2024] [Indexed: 03/07/2024]
Abstract
The genus Elephantopus L. is a valuable resource rich in sesquiterpenoids with structural diversity and various bioactivities, showing great potential for applications in medicinal field and biological industry. Up to now, over 129 sesquiterpenoids have been isolated and identified from this plant genus, including 114 germacrane-type, 7 guaianolide-type, 5 eudesmane-type, 1 elemanolide-type, and 2 bis-sesquiterpenoids. These sesquiterpenoids were reported to show a diverse range of pharmacological properties, including cytotoxic, anti-tumor, anti-inflammatory, antimicrobial, and antiprotozoal. Consequently, some of them were identified as active scaffolds in the design and development of drugs. Considering that there is currently no overview available that covers the sesquiterpenoids and their biological activities in the Elephantopus genus, this article aims to comprehensively review the chemical structures, biosynthetic pathways, pharmacological properties, and structure-activity relationship of sesquiterpenoids found in the Elephantopus genus, which will establish a theoretical framework that can guide further research and exploration of sesquiterpenoids from Elephantopus plants as promising therapeutic agents.
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Affiliation(s)
- Qian-Ru Rao
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China; Laboratory of Molecular Translational Medicine, Center for Translational Medicine, Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Maternal & Child Nutrition Center, West China Second University Hospital, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Jian-Bo Rao
- Research Center of Natural Resources of Chinese Medicinal Materials and Ethnic Medicine, Jiangxi University of Chinese Medicine, Nanchang, 330004, People's Republic of China
| | - Min Zhao
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, Chengdu, 610041, People's Republic of China.
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Zhang MY, Chen SL, Lin CY, Zhang HX, Zhang T, Zou ZM. New caffeoyl derivatives with potent DPPH radical scavenging activity from Elephantopus tomentosus. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2024; 26:26-37. [PMID: 38196236 DOI: 10.1080/10286020.2023.2294066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 12/07/2023] [Indexed: 01/11/2024]
Abstract
Eight new caffeoyl derivatives, elephantomentosides A-H (1 - 8), together with ten known ones (9 - 18), were isolated from the whole plant of Elephantopos tomentosus L. Their structures were elucidated using detailed spectroscopic analysis. Structurally, compounds 1 - 8 are composed of β-D-glucopyranose, and almost all of the substituent positions are at the C-1' and C-4' of glucopyranose. The anti-inflammatory and antioxidant activities of all isolated compounds were evaluated in vitro. Compounds 9-10, 13-15, and 17-18 exhibited significant DPPH scavenging capacity with IC50 values in the range of 10.01-25.07 μM, in comparison with Vc (IC50, 17.98 μM).
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Affiliation(s)
- Meng-Yao Zhang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Shi-Lin Chen
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Chun-Yu Lin
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Hai-Xin Zhang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Tao Zhang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
- State Key Laboratory of Basis and New Drug Development of Natural and Nuclear Drugs, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Zhong-Mei Zou
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
- State Key Laboratory of Basis and New Drug Development of Natural and Nuclear Drugs, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
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Bai M, Xu W, Zhang X, Li Q, Du NN, Liu DF, Yao GD, Lin B, Song SJ, Huang XX. HSQC-based small molecule accurate recognition technology discovery of diverse cytotoxic sesquiterpenoids from Elephantopus tomentosus L. and structural revision of molephantins A and B. PHYTOCHEMISTRY 2023; 206:113562. [PMID: 36526100 DOI: 10.1016/j.phytochem.2022.113562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 12/08/2022] [Accepted: 12/11/2022] [Indexed: 06/17/2023]
Abstract
Elephantopus tomentosus L. is a perennial herb taxonomically belonging to the family Asteraceae, which has been used as a folk medicine for the treatment of hepatobiliary diseases. Sesquiterpenoids from this plant have broad biological activities, including anti-tumor, anti-inflammatory, and antibacterial effects. In this study, fifteen structurally diverse sesquiterpenoids comprised 11 germacrane-type and 4 eudesmane-type sesquiterpenoids were prioritized to isolated from Elephantopus tomentosus L. based on the HSQC-based Small Molecule Accurate Recognition Technology (SMART) strategy. Among them, ten sesquiterpenoids were previously unreported, and their structures were elucidated by spectroscopic data, computational methods, single-crystal X-ray diffraction crystallographic data or electronic circular dichroism calculations. In addition, the structures of two known sesquiterpenoids, molephantin A and B, which were reported to possess E-geometry for the Δ1(10) double bond, were revised by reanalyzing their spectroscopic and X-ray crystallographic data. Some sesquiterpenoids exhibited significant cytotoxic activities against Hep3B and HepG2 cell lines.
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Affiliation(s)
- Ming Bai
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development Liaoning Province, Engineering Research Center of Natural Medicine Active Molecule Research & Development Liaoning Province, Key Laboratory of Natural Bioactive Compounds Discovery & Modification Shenyang, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Wei Xu
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development Liaoning Province, Engineering Research Center of Natural Medicine Active Molecule Research & Development Liaoning Province, Key Laboratory of Natural Bioactive Compounds Discovery & Modification Shenyang, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Xin Zhang
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development Liaoning Province, Engineering Research Center of Natural Medicine Active Molecule Research & Development Liaoning Province, Key Laboratory of Natural Bioactive Compounds Discovery & Modification Shenyang, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Qian Li
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development Liaoning Province, Engineering Research Center of Natural Medicine Active Molecule Research & Development Liaoning Province, Key Laboratory of Natural Bioactive Compounds Discovery & Modification Shenyang, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Ning-Ning Du
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development Liaoning Province, Engineering Research Center of Natural Medicine Active Molecule Research & Development Liaoning Province, Key Laboratory of Natural Bioactive Compounds Discovery & Modification Shenyang, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - De-Feng Liu
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development Liaoning Province, Engineering Research Center of Natural Medicine Active Molecule Research & Development Liaoning Province, Key Laboratory of Natural Bioactive Compounds Discovery & Modification Shenyang, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Guo-Dong Yao
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development Liaoning Province, Engineering Research Center of Natural Medicine Active Molecule Research & Development Liaoning Province, Key Laboratory of Natural Bioactive Compounds Discovery & Modification Shenyang, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Bin Lin
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Shao-Jiang Song
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development Liaoning Province, Engineering Research Center of Natural Medicine Active Molecule Research & Development Liaoning Province, Key Laboratory of Natural Bioactive Compounds Discovery & Modification Shenyang, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Xiao-Xiao Huang
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development Liaoning Province, Engineering Research Center of Natural Medicine Active Molecule Research & Development Liaoning Province, Key Laboratory of Natural Bioactive Compounds Discovery & Modification Shenyang, School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China.
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Bai M, Xu W, Li Q, Liu DF, Lv TM, Du NN, Yao GD, Lin B, Song SJ, Huang XX. Highly Oxidized Germacranolides from Elephantopus tomentosus and the Configurational Revision of Some Previously Reported Analogues. JOURNAL OF NATURAL PRODUCTS 2022; 85:2433-2444. [PMID: 36223633 DOI: 10.1021/acs.jnatprod.2c00630] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Highly oxidized germacranolides are mainly found in the genus Elephantopus, contain a characteristic ten-membered molecular core that is highly flexible, and exhibit potential cytotoxic properties. However, their configurations were assigned ambiguously in previous reports due to spectroscopic observation of macrocyclic systems. Herein, 17 highly oxidized germacranolides, including 12 new germacranolides (1-12), were isolated from Elephantopus tomentosus. Their structures were characterized by spectroscopic data analysis combined with X-ray crystallography and ECD calculations, and it was possible to propose configurational revisions of five previously reported analogues (13-17). Cytotoxic activities for 1-17 against two hepatocellular carcinoma cell lines (HepG2 and Hep3B) were tested, and compounds 1-10 and 13-16 generated IC50 values of 2.2-9.8 μM. Furthermore, the observed cytotoxic activity of 1 was determined as being mediated by inducing the apoptosis of HepG2 and Hep3B cells via mitochondrial dysfunction.
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Affiliation(s)
- Ming Bai
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Wei Xu
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Qian Li
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - De-Feng Liu
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Tian-Ming Lv
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Ning-Ning Du
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Guo-Dong Yao
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Bin Lin
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Shao-Jiang Song
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Xiao-Xiao Huang
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
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García Manzano MF, Joray MB, Laiolo J, Palacios SM, Carpinella MC. Cytotoxic Activity of Germacrane-Type Sesquiterpene Lactones from Dimerostemma aspilioides. JOURNAL OF NATURAL PRODUCTS 2020; 83:1909-1918. [PMID: 32496057 DOI: 10.1021/acs.jnatprod.0c00115] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The need for effective candidates as cytotoxic drugs that at the same time challenge cancer multidrug resistance encouraged a search for these in plants of central Argentina. Bioassay-guided fractionation of the cytotoxic extract from Dimerostemma aspilioides led to the isolation of the germacranolide tomenphantin A (1), along with three new analogues (2-4). These efficiently inhibited the proliferation of the leukemia cell lines K562 and CCRF-CEM and their resistant variants, Lucena 1 and CEM/ADR5000, respectively, with IC50 values ranging from 0.40 to 7.7 μM. The structures and relative configurations of compounds 1-4 were elucidated by analysis of the spectroscopic data, in particular NMR spectroscopy. The most active among these was compound 1 (IC50 = 0.40-5.1 μM), and, therefore, this was selected as a model for a mechanistic study, which revealed that its antiproliferative effect was mediated by cell cycle arrest in the G2/M phase followed by apoptosis. The activity of compound 1 was selective, given the absence of cytotoxicity toward peripheral blood mononuclear cells. The results show the potential of these compounds, and in particular of compound 1, as leads for the development of drug candidates to fight sensitive and resistant leukemia cells.
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Affiliation(s)
- María F García Manzano
- Fine Chemical and Natural Products Laboratory, Research Institute of Natural Resources and Sustainability José Sánchez Labrador S.J. (IRNASUS-CONICET), School of Chemistry, Catholic University of Córdoba, Córdoba X5016DHK, Argentina
| | - Mariana B Joray
- Fine Chemical and Natural Products Laboratory, Research Institute of Natural Resources and Sustainability José Sánchez Labrador S.J. (IRNASUS-CONICET), School of Chemistry, Catholic University of Córdoba, Córdoba X5016DHK, Argentina
| | - Jerónimo Laiolo
- Fine Chemical and Natural Products Laboratory, Research Institute of Natural Resources and Sustainability José Sánchez Labrador S.J. (IRNASUS-CONICET), School of Chemistry, Catholic University of Córdoba, Córdoba X5016DHK, Argentina
| | - Sara M Palacios
- Fine Chemical and Natural Products Laboratory, Research Institute of Natural Resources and Sustainability José Sánchez Labrador S.J. (IRNASUS-CONICET), School of Chemistry, Catholic University of Córdoba, Córdoba X5016DHK, Argentina
| | - María C Carpinella
- Fine Chemical and Natural Products Laboratory, Research Institute of Natural Resources and Sustainability José Sánchez Labrador S.J. (IRNASUS-CONICET), School of Chemistry, Catholic University of Córdoba, Córdoba X5016DHK, Argentina
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González ML, Joray MB, Laiolo J, Crespo MI, Palacios SM, Ruiz GM, Carpinella MC. Cytotoxic Activity of Extracts from Plants of Central Argentina on Sensitive and Multidrug-Resistant Leukemia Cells: Isolation of an Active Principle from Gaillardia megapotamica. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2018; 2018:9185935. [PMID: 29861776 PMCID: PMC5971282 DOI: 10.1155/2018/9185935] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Revised: 02/20/2018] [Accepted: 03/26/2018] [Indexed: 02/07/2023]
Abstract
Plants are a significant reservoir of cytotoxic agents, including compounds with the ability to interfere with multidrug-resistant (MDR) cells. With the aim of finding promising candidates for chemotherapy, 91 native and naturalized plants collected from the central region of Argentina were screened for their cytotoxic effect toward sensitive and MDR P-glycoprotein (P-gp) overexpressing human leukemia cells by means of MTT assays. The ethanol extracts obtained from Aldama tucumanensis, Ambrosia elatior, Baccharis artemisioides, Baccharis coridifolia, Dimerostemma aspilioides, Gaillardia megapotamica, and Vernonanthura nudiflora presented outstanding antiproliferative activity at 50 μg/mL, with inhibitory values from 93 to 100%, when tested on the acute lymphoblastic leukemia (ALL) cell line CCRF-CEM and the resistant derivative CEM-ADR5000, while 70-90% inhibition was observed against the chronic myelogenous leukemia (CML) cell K562 and its corresponding resistant subline, Lucena 1. Subsequent investigation showed these extracts to possess marked cytotoxicity with IC50 values ranging from 0.37 to 29.44 μg/mL, with most of them being below 7 μg/mL and with ALL cells, including the drug-resistant phenotype, being the most affected. G. megapotamica extract found to be one of the most effective and bioguided fractionation yielded helenalin (1). The sesquiterpene lactone displayed IC50 values of 0.63, 0.19, 0.74, and 0.16 μg/mL against K562, CCRF-CEM, Lucena 1, and CEM/ADR5000, respectively. These results support the potential of these extracts as a source of compounds for treating sensitive and multidrug-resistant leukemia cells and support compound 1 as a lead for developing effective anticancer agents.
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Affiliation(s)
- María Laura González
- Fine Chemical and Natural Products Laboratory, School of Chemistry, IRNASUS-CONICET, Catholic University of Córdoba, Avda. Armada Argentina 3555, X5016DHK Córdoba, Argentina
| | - Mariana Belén Joray
- Fine Chemical and Natural Products Laboratory, School of Chemistry, IRNASUS-CONICET, Catholic University of Córdoba, Avda. Armada Argentina 3555, X5016DHK Córdoba, Argentina
| | - Jerónimo Laiolo
- Fine Chemical and Natural Products Laboratory, School of Chemistry, IRNASUS-CONICET, Catholic University of Córdoba, Avda. Armada Argentina 3555, X5016DHK Córdoba, Argentina
| | - María Inés Crespo
- Fine Chemical and Natural Products Laboratory, School of Chemistry, IRNASUS-CONICET, Catholic University of Córdoba, Avda. Armada Argentina 3555, X5016DHK Córdoba, Argentina
| | - Sara María Palacios
- Fine Chemical and Natural Products Laboratory, School of Chemistry, IRNASUS-CONICET, Catholic University of Córdoba, Avda. Armada Argentina 3555, X5016DHK Córdoba, Argentina
| | - Gustavo Miguel Ruiz
- Herbarium Marcelino Sayago, School of Agricultural Science, Catholic University of Córdoba, Avda. Armada Argentina 3555, X5016DHK Córdoba, Argentina
| | - María Cecilia Carpinella
- Fine Chemical and Natural Products Laboratory, School of Chemistry, IRNASUS-CONICET, Catholic University of Córdoba, Avda. Armada Argentina 3555, X5016DHK Córdoba, Argentina
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Wang B, Mei W, Zuo W, Zhao Y, Dong W, Liu G, Dai H. Two New Sesquiterpene Lactones from Elephantopus tomentosus. CHINESE J CHEM 2012. [DOI: 10.1002/cjoc.201200231] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Wang B, Mei WL, Zeng YB, Guo ZK, Liu GD, Dai HF. A new sesquiterpene lactone from Elephantopus tomentosus. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2012; 14:700-703. [PMID: 22582752 DOI: 10.1080/10286020.2012.682153] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A new sesquiterpene lactone, named tomenphantopin H (1), together with two known germacranolides, 2β-methoxy-2-deethoxy-8-O-deacylphantomolin-8-O-tiglinate (2) and 2-deethoxy-2-hydroxyphantomolin (3), was isolated from the whole plant of Elephantopus tomentosus Linn. The new compound was completely elucidated using a combination of 1D and 2D NMR techniques (COSY, HMQC, and HMBC) and HR-ESI-MS analyses. All compounds exhibited antibacterial activity.
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Affiliation(s)
- Bei Wang
- Hainan Key Laboratory for Research and Development of Natural Products from Li Folk Medicine, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
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Tung YL, Cheng MJ, Hu NY, Shih YC, Chiou SJ, Chen IS. Secondary Metabolites from Saussurea deltoidea and Their Inhibitory Activity on Lipopolysaccharide-Induced Tumor Necrosis Factor Production. Chem Biodivers 2011. [DOI: 10.1002/cbdv.201000166] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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10
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Wu B, He S, Wu XD, Pan YJ. New Tyrosinase Inhibitory Sesquiterpenes fromChloranthus henryi. Chem Biodivers 2008; 5:1298-303. [DOI: 10.1002/cbdv.200890116] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Policegoudra RS, Abiraj K, Channe Gowda D, Aradhya SM. Isolation and characterization of antioxidant and antibacterial compound from mango ginger (Curcuma amada Roxb.) rhizome. J Chromatogr B Analyt Technol Biomed Life Sci 2007; 852:40-8. [PMID: 17223394 DOI: 10.1016/j.jchromb.2006.12.036] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2006] [Revised: 12/27/2006] [Accepted: 12/28/2006] [Indexed: 11/28/2022]
Abstract
The chloroform extract of mango ginger (Curcuma amada Roxb.) rhizome was subjected to antioxidant activity-guided purification by repeated silica gel column chromatography to obtain a pure antioxidant compound. The structure was deduced by analyzing UV, IR, liquid chromatography-mass spectrometry (LC-MS) and two-dimensional heteronuclear multiple quantum coherence transfer spectroscopy (2D-HMQCT) NMR spectral data, and named it as "Amadannulen", a novel compound. It exhibited DPPH radical scavenging activity, super oxide radical scavenging activity, lipid peroxidation inhibitory activity and metal chelating activity. Amadannulen also showed antibacterial activity against both Gram-positive and Gram-negative bacteria tested. It also exhibited bactericidal activity against M. luteus, B. cereus and B. subtilis.
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Affiliation(s)
- R S Policegoudra
- Department of Fruit and Vegetable Technology, Central Food Technological Research Institute, Mysore 570020, India
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12
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13
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Pollora G, Bardón A, Catálan C, Gedris T, Herz W. Elephantopus-type sesquiterpene lactones from a Vernonanthura species, Vernonanthura nebularum. BIOCHEM SYST ECOL 2003. [DOI: 10.1016/s0305-1978(02)00167-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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