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Structure and absolute configuration of parodiolide, a new dimeric sesquiterpene lactone isolated from Mikania parodii Cabrera possessing an uncommon spiro connexion. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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2
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Tian SH, Zhang C, Zeng KW, Zhao MB, Jiang Y, Tu PF. Sesquiterpenoids from Artemisia vestita. PHYTOCHEMISTRY 2018; 147:194-202. [PMID: 29353156 DOI: 10.1016/j.phytochem.2018.01.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 12/14/2017] [Accepted: 01/05/2018] [Indexed: 06/07/2023]
Abstract
Eleven previously undescribed sesquiterpenoids, arvestolides D-J, arvestonates A-C, and arvestonol were isolated from the aerial parts of Artemisia vestita W. Their structures were elucidated by extensive analysis of HRMS, UV, IR, and NMR spectroscopic data, and the absolute configurations were determined by single crystal X-ray diffraction, empirical rules, and comparison of calculated and experimental ECD data. Arvestolides H and I showed inhibitory effects on nitric oxide production in BV-2 cells induced by lipopolysaccharide with IC50 values of 43.2 and 39.9 μM, respectively.
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Affiliation(s)
- Shuai-Hua Tian
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, People's Republic of China
| | - Chen Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, People's Republic of China
| | - Ke-Wu Zeng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, People's Republic of China
| | - Ming-Bo Zhao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, People's Republic of China
| | - Yong Jiang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, People's Republic of China.
| | - Peng-Fei Tu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, People's Republic of China.
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Cheng GG, Li D, Hou B, Li XN, Liu L, Chen YY, Lunga PK, Khan A, Liu YP, Zuo ZL, Luo XD. Melokhanines A-J, Bioactive Monoterpenoid Indole Alkaloids with Diverse Skeletons from Melodinus khasianus. JOURNAL OF NATURAL PRODUCTS 2016; 79:2158-2166. [PMID: 27584856 DOI: 10.1021/acs.jnatprod.6b00011] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The new melokhanines A-J (1-10) and 22 known (11-32) alkaloids were isolated from the twigs and leaves of Melodinus khasianus. The new compounds and their absolute configurations were elucidated by extensive analysis of spectroscopic, X-ray diffraction, and computational data. Melokhanine A (1), composed of a hydroxyindolinone linked to an octahydrofuro[2,3-b]pyridine moiety, is an unprecedented monoterpenoid indole alkaloid. Melokhanines B-H (2-8) possess a new 6/5/5/6/6 pentacyclic indole alkaloid skeleton. Alkaloids 1-16, 25-27, 31, and 32 showed the best antibacterial activity against Pseudomonas aeruginosa (MIC range 2-22 μM). Among the seven dermatophytes tested, compound 1 showed significant inhibitory activity against Microsporum canis, M. ferrugineum, and Trichophyton ajelloi (MIC range 38-150 μM), i.e., half the efficacy of the positive control, griseofulvin.
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Affiliation(s)
- Gui-Guang Cheng
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming, 650201, People's Republic of China
- Yunnan Institute of Food Safety, Kunming University of Science and Technology , Kunming, 650500, People's Republic of China
- Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming, 650201, People's Republic of China
| | - Dan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming, 650201, People's Republic of China
- Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming, 650201, People's Republic of China
| | - Bo Hou
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming, 650201, People's Republic of China
- Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming, 650201, People's Republic of China
| | - Xiao-Nian Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming, 650201, People's Republic of China
- Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming, 650201, People's Republic of China
| | - Lu Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming, 650201, People's Republic of China
- Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming, 650201, People's Republic of China
| | - Ying-Ying Chen
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming, 650201, People's Republic of China
- Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming, 650201, People's Republic of China
| | - Paul-Keilah Lunga
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming, 650201, People's Republic of China
- Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming, 650201, People's Republic of China
| | - Afsar Khan
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming, 650201, People's Republic of China
- Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming, 650201, People's Republic of China
- Department of Chemistry, COMSATS Institute of Information Technology , Abbottabad-22060, Pakistan
| | - Ya-Ping Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming, 650201, People's Republic of China
- Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming, 650201, People's Republic of China
| | - Zhi-Li Zuo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming, 650201, People's Republic of China
- Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming, 650201, People's Republic of China
| | - Xiao-Dong Luo
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences , Kunming, 650201, People's Republic of China
- Yunnan Key Laboratory of Natural Medicinal Chemistry , Kunming, 650201, People's Republic of China
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Batista Jr. JM, Blanch EW, Bolzani VDS. Recent advances in the use of vibrational chiroptical spectroscopic methods for stereochemical characterization of natural products. Nat Prod Rep 2015; 32:1280-302. [DOI: 10.1039/c5np00027k] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A comprehensive look into application of vibrational optical activity methods for conformational and configurational assignments in natural product molecules over the last 15 years is provided.
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Affiliation(s)
- João M. Batista Jr.
- Department of Chemistry
- Federal University of São Carlos – UFSCar
- São Carlos
- Brazil
| | - Ewan W. Blanch
- School of Applied Sciences
- RMIT University
- Melbourne
- Australia
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Ríos EV, León A, Chávez MI, Torres Y, Ramírez-Apan MT, Toscano RA, Bravo-Monzón ÁE, Espinosa-García FJ, Delgado G. Sesquiterpene lactones from Mikania micrantha and Mikania cordifolia and their cytotoxic and anti-inflammatory evaluation. Fitoterapia 2014; 94:155-63. [PMID: 24565963 DOI: 10.1016/j.fitote.2014.02.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 02/11/2014] [Accepted: 02/14/2014] [Indexed: 10/25/2022]
Abstract
The guaianolide 8-epi-mikanokryptin (1) and the melampolide 11Hβ-11,13-dihydromicrantholide (2) along with known sesquiterpene lactones (3-13) and other constituents were isolated from the aerial parts of different populations of Mikania micrantha and Mikania cordifolia collected in several states of Mexico. The relative and absolute configurations of 1 were determined by X-ray diffraction and CD analysis, respectively. Considering the (1)H and (13)C NMR chemical shift similarities and the H-H coupling constant values, a [(1)D(14), (15)D5] conformation was established for micrantholides (2, 8-13). We tested nearly all the sesquiterpene lactones for antiproliferative activity in human cancer cell lines, and they exhibited moderate activity. Additionally, in a mouse ear model of edema induced by TPA, the anti-inflammatory activities were marginal.
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Affiliation(s)
- Eunice V Ríos
- Programa de Química, Facultad de Ciencias Básicas, Universidad del Quindío, Carrera 15, Calle 12 Norte, Armenia, Quindío, Colombia; Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán 04510, México, D.F., Mexico
| | - Alejandra León
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán 04510, México, D.F., Mexico
| | - María Isabel Chávez
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán 04510, México, D.F., Mexico
| | - Yuridia Torres
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán 04510, México, D.F., Mexico
| | - María Teresa Ramírez-Apan
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán 04510, México, D.F., Mexico
| | - Rubén A Toscano
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán 04510, México, D.F., Mexico
| | - Ángel E Bravo-Monzón
- Centro de Investigaciones en Ecosistemas, Universidad Nacional Autónoma de México, Antigua carretera a Pátzcuaro No. 8701, Col. Ex-Hacienda de San José de la Huerta, 58190 Morelia, Michoacán, Mexico
| | - Francisco J Espinosa-García
- Centro de Investigaciones en Ecosistemas, Universidad Nacional Autónoma de México, Antigua carretera a Pátzcuaro No. 8701, Col. Ex-Hacienda de San José de la Huerta, 58190 Morelia, Michoacán, Mexico
| | - Guillermo Delgado
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán 04510, México, D.F., Mexico.
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Laurella LC, Frank FM, Sarquiz A, Alonso MR, Giberti G, Cavallaro L, Catalán CA, Cazorla SI, Malchiodi E, Martino VS, Sülsen VP. In vitro evaluation of antiprotozoal and antiviral activities of extracts from Argentinean Mikania species. ScientificWorldJournal 2012; 2012:121253. [PMID: 22919289 PMCID: PMC3417183 DOI: 10.1100/2012/121253] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Accepted: 06/05/2012] [Indexed: 12/01/2022] Open
Abstract
The aim of this study was to investigate the antiprotozoal and antiviral activities of four Argentinean Mikania species. The organic and aqueous extracts of Mikania micrantha, M. parodii, M. periplocifolia, and M. cordifolia were tested on Trypanosoma cruzi epimastigotes, Leishmania braziliensis promastigotes, and dengue virus type 2. The organic extract of M. micrantha was the most active against T. cruzi and L. braziliensis exhibiting a growth inhibition of 77.6 ± 4.5% and 84.9 ± 6.1%, respectively, at a concentration of 10 μg/ml. The bioguided fractionation of M. micrantha organic extract led to the identification of two active fractions. The chromatographic profile and infrared analysis of these fractions revealed the presence of sesquiterpene lactones. None of the tested extracts were active against dengue virus type 2.
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Affiliation(s)
- Laura C Laurella
- Cátedra de Farmacognosia, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 956 2°P, 1113, Buenos Aires, Argentina
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Abstract
This review covers the isolation, structural determination, synthesis and chemical and microbiological transformations of natural sesquiterpenoids. 423 references are cited.
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Affiliation(s)
- Braulio M Fraga
- Instituto de Productos Naturales y Agrobiología, CSIC, 38206, La Laguna, Tenerife, Canary Islands, Spain.
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8
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Burgueño-Tapia E, Joseph-Nathan P. Absolute configuration of eremophilanoids by vibrational circular dichroism. PHYTOCHEMISTRY 2008; 69:2251-2256. [PMID: 18599095 DOI: 10.1016/j.phytochem.2008.05.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2007] [Revised: 04/09/2008] [Accepted: 05/21/2008] [Indexed: 05/26/2023]
Abstract
The absolute configurations (AC) of natural occurring 6-hydroxyeuryopsin (1), of its acetyl derivative 2, and of eremophilanolide 8 were confirmed by comparison of the experimental vibrational circular dichroism (VCD) spectra with theoretical curves generated from density functional theory (DFT) calculations. Initial analyses were carried out using a Monte Carlo searching with the MMFF94 molecular mechanics force field. All MMFF94 conformers were further optimized using DFT at the B3LYP/6-31G(d) level of theory, followed by calculations of their vibrational frequencies at the B3LYP/6-31G(d,p); the VCD spectra of 2 and 8 were also calculated at the B3PW91/DGDZVP level of theory. Good agreement between theoretical and experimental VCD curves unambiguously verified the 4S,5R,6S absolute configuration for 1 and 2, and the 1S,4S,5R,6S,8S,10S configuration for 8.
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Affiliation(s)
- Eleuterio Burgueño-Tapia
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala, Col. Santo Tomás, México D.F., 11340 Mexico
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Cerda-García-Rojas CM, Catalán CAN, Muro AC, Joseph-Nathan P. Vibrational circular dichroism of Africanane and lippifoliane sesquiterpenes from Lippia integrifolia. JOURNAL OF NATURAL PRODUCTS 2008; 71:967-971. [PMID: 18500843 DOI: 10.1021/np8000927] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The agreement between theoretical and experimental vibrational circular dichroism curves of (4R,9R,10R)-(+)-african-1(5)-ene-2,6-dione (1) and (4R,9S,10R)-lippifoli-1(6)-en-5-one (2), isolated from the widely used plant Lippia integrifolia, allowed the determination of the conformation and absolute configuration of 1 and confirmed both structural features for 2. Molecular modeling of 1 and 2 was carried out by means of a systematic and a Monte Carlo search protocol followed by geometry optimization employing density functional theory calculations with the B3LYP/6-31G(d), B3LYP/DGDZVP, and/or B3PW91/DGDZVP2 functionals/basis sets. Validation of the minimum energy conformations for both tricyclic substances was achieved by comparison of the experimental and theoretical vicinal (1)H-(1)H NMR coupling constants obtained by DFT-GIAO calculations.
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Affiliation(s)
- Carlos M Cerda-García-Rojas
- Departamento de Química, Centro de InVestigación y de Estudios Avanzados del Instituto Politécnico Nacional, Apartado 14-740, México, D. F., 07000 México.
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Nafie LA. Vibrational Circular Dichroism: A New Tool for the Solution-State Determination of the Structure and Absolute Configuration of Chiral Natural Product Molecules. Nat Prod Commun 2008. [DOI: 10.1177/1934578x0800300322] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Vibrational circular dichroism (VCD) has been used in recent years to determine the absolute configuration of a number of natural product chiral molecules. In this brief review, these applications will be described and the methodology of VCD determination of absolute configuration (AC) will be explained. The principal advantages of VCD versus X-ray crystallography for absolute configuration determination are: 1) only solution-state samples are needed and therefore single crystals are not required, 2) high enantiomeric sample purity is not required, 3) high chemical purity is not required as long as impurities are not chiral and 4) solution-state conformations are obtained as an extra feature of the AC determination.
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Affiliation(s)
- Laurence A. Nafie
- Department of Chemistry, 1-014CST, Syracuse University, Syracuse, New York 13244-4100, USA
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