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Dos Santos IIP, Silva MDCC, Ferraz CG, Ribeiro PR. Flavonoids, biphenyls and xanthones from the genus Clusia: chemistry, biological activities and chemophenetics relevance. Nat Prod Res 2024:1-14. [PMID: 38498692 DOI: 10.1080/14786419.2024.2330515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 03/01/2024] [Indexed: 03/20/2024]
Abstract
Clusia is one of the most important genera of the Clusiaceae family, comprising up to 400 species. This review describes the identification of twenty-two flavonoids from Clusia species, which includes five flavonols (1-4 and 11), six flavones (5-10), one catechin (12), one flavanone (13), and nine biflavonoids (14-22). O- and C-glycosylation are frequently observed amongst these flavonoids. Furthermore, seven biphenyls (23-29) and nine xanthones (30-38) have been isolated from Clusia species. Biphenyls and xanthones show limited occurrence within the genus, but together with biosynthetic insights, they might offer important chemophenetics leads for the consolidation of the genus Clusia within the Clusiaceae family. Altogether, this work provides an overview of the chemistry of the genus Clusia in terms of flavonoids, biphenyls and xanthones, as well as it discusses biological activities and chemophenetics of the isolated compounds, when appropriate.
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Affiliation(s)
- Ismirna I P Dos Santos
- Metabolomics Research Group, Departamento de Química Orgânica, Instituto de Química, Universidade Federal da Bahia, Salvador, Brazil
- Programa de Pós-Graduação em Química Aplicada, Departamento de Ciências Exatas e da Terra - Campus I da UNEB, Salvador, Brazil
| | - Maria do Carmo C Silva
- Metabolomics Research Group, Departamento de Química Orgânica, Instituto de Química, Universidade Federal da Bahia, Salvador, Brazil
| | - Caline G Ferraz
- Metabolomics Research Group, Departamento de Química Orgânica, Instituto de Química, Universidade Federal da Bahia, Salvador, Brazil
- Programa de Pós-Graduação em Química Aplicada, Departamento de Ciências Exatas e da Terra - Campus I da UNEB, Salvador, Brazil
| | - Paulo R Ribeiro
- Metabolomics Research Group, Departamento de Química Orgânica, Instituto de Química, Universidade Federal da Bahia, Salvador, Brazil
- Programa de Pós-Graduação em Química Aplicada, Departamento de Ciências Exatas e da Terra - Campus I da UNEB, Salvador, Brazil
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Xiao WL, Chen WH, Li W, Chen GY, Song XP, Han CR. Chemical constituents from the stem of Ficus pumila. Nat Prod Res 2024; 38:408-414. [PMID: 36125390 DOI: 10.1080/14786419.2022.2125966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 09/10/2022] [Indexed: 10/14/2022]
Abstract
A new biphenyl compound: 5-aldehyde-4'-hydroxy-2,2'-dimethoxybiphenyl (1), along with 11 known phenolic compounds (2-12) were isolated from the stem of Ficus pumila Linn. Their structures were established by spectroscopic methods, including MS, UV, IR, 1 D and 2 D NMR. Compounds 4 and 10 showed weakly cytotoxicity against MCF-7, with IC50 values of 32.5 and 37.3 µM, respectively.
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Affiliation(s)
- Wen-Lin Xiao
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, P. R. China
- Hainan Center for Disease Control & Prevention, Haikou, P. R. China
| | - Wen-Hao Chen
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, P. R. China
| | - Wei Li
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, P. R. China
- Medical College, Hubei University of Arts and Science, XiangYang, HuBei, P. R. China
| | - Guang-Ying Chen
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, P. R. China
| | - Xiao-Ping Song
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, P. R. China
| | - Chang-Ri Han
- Key Laboratory of Tropical Medicinal Resource Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, P. R. China
- Key Laboratory of Medicinal and Edible Plants Resources of Hainan Province, Hainan Vocational University of Science and Technology, Haikou, P. R. China
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Fukuyama Y, Kubo M, Harada K. Neurotrophic Natural Products. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2024; 123:1-473. [PMID: 38340248 DOI: 10.1007/978-3-031-42422-9_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2024]
Abstract
Neurotrophins (NGF, BDNF, NT3, NT4) can decrease cell death, induce differentiation, as well as sustain the structure and function of neurons, which make them promising therapeutic agents for the treatment of neurodegenerative disorders. However, neurotrophins have not been very effective in clinical trials mostly because they cannot pass through the blood-brain barrier owing to being high-molecular-weight proteins. Thus, neurotrophin-mimic small molecules, which stimulate the synthesis of endogenous neurotrophins or enhance neurotrophic actions, may serve as promising alternatives to neurotrophins. Small-molecular-weight natural products, which have been used in dietary functional foods or in traditional medicines over the course of human history, have a great potential for the development of new therapeutic agents against neurodegenerative diseases such as Alzheimer's disease. In this contribution, a variety of natural products possessing neurotrophic properties such as neurogenesis, neurite outgrowth promotion (neuritogenesis), and neuroprotection are described, and a focus is made on the chemistry and biology of several neurotrophic natural products.
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Affiliation(s)
- Yoshiyasu Fukuyama
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, 770-8514, Japan.
| | - Miwa Kubo
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, 770-8514, Japan
| | - Kenichi Harada
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, 770-8514, Japan
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Wang Y, Huang Q, Zhang L, Zheng C, Xu H. Biphenyls in Clusiaceae: Isolation, structure diversity, synthesis and bioactivity. Front Chem 2022; 10:987009. [PMID: 36531325 PMCID: PMC9751493 DOI: 10.3389/fchem.2022.987009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 11/14/2022] [Indexed: 12/05/2022] Open
Abstract
Clusiaceae plants contain a wide range of biologically active metabolites that have gotten a lot of interest in recent decades. The chemical compositions of these plants have been demonstrated to have positive effects on a variety of ailments. The species has been studied for over 70 years, and many bioactive compounds with antioxidant, anti-proliferative, and anti-inflammatory properties have been identified, including xanthones, polycyclic polyprenylated acylphloroglucinols (PPAPs), benzophenones, and biphenyls. Prenylated side chains have been discovered in many of these bioactive substances. To date, there have been numerous studies on PPAPs and xanthones, while no comprehensive review article on biphenyls from Clusiaceae has been published. The unique chemical architectures and growing biological importance of biphenyl compounds have triggered a flurry of research and interest in their isolation, biological evaluation, and mechanistic studies. In particular, the FDA-approved drugs such as sonidegib, tazemetostat, daclatasvir, sacubitril and trifarotene are closely related to their biphenyl-containing moiety. In this review, we summarize the progress and development in the chemistry and biological activity of biphenyls in Clusiaceae, providing an in-depth discussion of their structural diversity and medicinal potential. We also present a preliminary discussion of the biological effects with or without prenyl groups on the biphenyls.
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Affiliation(s)
- Youyi Wang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qing Huang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Li Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Changwu Zheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China,*Correspondence: Changwu Zheng, ; Hongxi Xu,
| | - Hongxi Xu
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China,*Correspondence: Changwu Zheng, ; Hongxi Xu,
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Marques EDJ, Ferraz CG, dos Santos IB, dos Santos II, El-Bachá RS, Ribeiro PR, Cruz FG. Chemical constituents isolated from Clusia criuva subsp. Criuva and their chemophenetics significance. BIOCHEM SYST ECOL 2021. [DOI: 10.1016/j.bse.2021.104293] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Fukuyama Y, Kubo M, Harada K. The search for, and chemistry and mechanism of, neurotrophic natural products. J Nat Med 2020; 74:648-671. [PMID: 32643028 PMCID: PMC7456418 DOI: 10.1007/s11418-020-01431-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 06/28/2020] [Indexed: 12/13/2022]
Abstract
Abstract Neurotrophic factors, now termed neurotrophins, which belong to a class of polypeptidyl agents, have been shown to potentially be beneficial for the treatment of neurodegenerative diseases such as Alzheimer’s disease, because endogenous neurotrophic factors (NGF, BDNF, NT3, NT4) have been recognized to play critical roles in the promotion of neurogenesis, differentiation, and neuroprotection throughout the development of the central nervous system. However, high-molecular weight proteins are unable to cross the blood–brain barrier and are easily decomposed by peptidase under physiological conditions. To address this issue, small molecules that can mimic the functions of neurotrophic factors would be promising alternatives for the treatment of neurodegenerative disease. We have continued to search for natural products having typical neurotrophic properties, which can cause neurogenesis, enhance neurite outgrowth, and protect neuronal death using three cellular systems (PC12, rat cortical neurons, and MEB5 cells). In this review, we summarize the neurotrophic activities and synthesis of dimeric isocuparane-type sesquiterpenes from the liverwort, Mastigophora diclados, the mechanism of neurotrophic neolignans, magnolol, honokiol and their sesquiterpene derivatives, and introduce unique neurotrophin-mimic natural products, including seco-prezizaane-type sesquiterpenes from the Illicium species, vibsane-type diterpenes from Viburnum awabuki, and miscellaneous natural products with neurotrophic effects discovered by us. Graphic abstract ![]()
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Affiliation(s)
- Yoshiyasu Fukuyama
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, 770-8514, Japan.
| | - Miwa Kubo
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, 770-8514, Japan
| | - Kenichi Harada
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Tokushima, 770-8514, Japan
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Shally, Althagafi I, Shaw R, Elagamy A, Kumar A, Pratap R. A [5 + 1] annulation strategy for the synthesis of multifunctional biaryls and p-teraryls from 1,6-Michael acceptor ketene dithioacetals. Org Biomol Chem 2020; 18:6407-6417. [DOI: 10.1039/d0ob00998a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A [5 + 1] annulation approach was used to access multifunctional biaryls and p-teraryls from ketene dithioacetals.
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Affiliation(s)
- Shally
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | | | - Ranjay Shaw
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | - Amr Elagamy
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | - Abhinav Kumar
- Department of Chemistry
- University of Lucknow
- Lucknow
- India
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Henkin JM, Ren Y, Soejarto DD, Kinghorn AD. The Search for Anticancer Agents from Tropical Plants. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2018; 107:1-94. [PMID: 30178270 DOI: 10.1007/978-3-319-93506-5_1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Many of the clinically used anticancer agents in Western medicine are derived from secondary metabolites found in terrestrial microbes, marine organisms, and higher plants, with additional compounds of this type being currently in clinical trials. If plants are taken specifically, it is generally agreed that the prospects of encountering enhanced small organic-molecule chemical diversity are better if tropical rather than temperate species are investigated in drug discovery efforts. Plant collection in tropical source countries requires considerable preparation and organization to conduct in a responsible manner that abides by the provisions of the 1992 Rio Convention of Biological Diversity and the 2010 Nagoya Protocol on Access to Genetic Resources. Correct taxonomic identifications and enhanced procedures for processing and documenting plant samples when collected in often difficult terrain are required. Phytochemical aspects of the work involve solvent fractionation, known compound dereplication, preliminary in vitro testing, and prioritization, leading to "activity-guided fractionation", compound structure determination, and analog development. Further evaluation of lead compounds requires solubility, formulation, preliminary pharmacokinetics, and in vivo testing in suitable models. Covering the work of the authors carried out in two sequential multidisciplinary, multi-institutional research projects, examples of very promising compounds discovered from plants acquired from Africa, Southeast Asia, the Americas, and the Caribbean region, and with potential anticancer activity will be mentioned. These include plant secondary metabolites of the diphyllin lignan, cyclopenta[b]benzofuran, triterpenoid, and tropane alkaloid types.
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Affiliation(s)
- Joshua M Henkin
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - Yulin Ren
- Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH, USA
| | - Djaja Djendoel Soejarto
- Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, IL, USA
| | - A Douglas Kinghorn
- Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, OH, USA.
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Silva KMMDA, Nóbrega ABDA, Lessa B, Anholeti MC, Lobão AQ, Valverde AL, Paiva SRDE, Joffily A. Clusia criuva Cambess. (Clusiaceae): anatomical characterization, chemical prospecting and antioxidant activity. AN ACAD BRAS CIENC 2017; 89:1565-1578. [PMID: 28767887 DOI: 10.1590/0001-3765201720160286] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 08/23/2016] [Indexed: 11/21/2022] Open
Abstract
This study aims the anatomical description and chemical characterization of aerial parts of Clusia criuva Cambess., Clusiaceae in addition to the evaluation of the antioxidant activity of crude extracts, correlated to the flavonoid content. The morphological characterization was performed using traditional techniques of plant anatomy. For phytochemical studies, crude extracts were obtained by static maceration and analyzed by thin layer chromatography. The antioxidant activity and the flavonoids content were determined by colorimetric methods involving, respectively, 2,2-diphenyl-1-picrylhydrazyl free radical and aluminum chloride. C. criuva has uniseriate epidermis, paracytic stomata, hypostomatic leaves, cuticular flanges and cordiform vascular cylinder with accessory bundles. Chemical prospecting confirmed the abundant presence of terpenes and phenols in the extracts of leaves and of fruits. The methanolic extract of seeds showed the lowest EC50 value, but the methanolic extract of pericarps exhibited the highest maximum antioxidant activity. The results suggested a high percentage of flavonoids in the hexanic extract of pericarps, however, this could represent, in fact, the presence of benzophenones. Secretory ducts and the shape of the midrib are diagnostic for C. criuva. The antioxidant activity is not directly related to the flavonoids. The results indicate the importance of future studies with C. criuva chemical constituents.
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Affiliation(s)
- Karla M M DA Silva
- Instituto de Pesquisas do Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão, 915, Jardim Botânico, 22460-030 Rio de Janeiro, RJ, Brazil
| | - Andrea B DA Nóbrega
- Fundação Oswaldo Cruz, Instituto de Tecnologia em Fármacos, Far-Manguinhos/FIOCRUZ, Av. Comandante Guaranys, 447, Jacarepaguá, 22775-903 Rio de Janeiro, RJ, Brazil
| | - Bruno Lessa
- Fundação Oswaldo Cruz, Instituto de Tecnologia em Fármacos, Far-Manguinhos/FIOCRUZ, Av. Comandante Guaranys, 447, Jacarepaguá, 22775-903 Rio de Janeiro, RJ, Brazil
| | - Maria Carolina Anholeti
- Setor de Botânica, Departamento de Biologia Geral, Instituto de Biologia, Universidade Federal Fluminense, Outeiro de São João Batista, s/n, Campus do Valonguinho, Centro, 24210-130 Niterói, RJ, Brazil
| | - Adriana Q Lobão
- Setor de Botânica, Departamento de Biologia Geral, Instituto de Biologia, Universidade Federal Fluminense, Outeiro de São João Batista, s/n, Campus do Valonguinho, Centro, 24210-130 Niterói, RJ, Brazil
| | - Alessandra L Valverde
- Lapromar, Departamento de Química Orgânica, Instituto de Química, Universidade Federal Fluminense, Outeiro de São João Batista, s/n, Campus do Valonguinho, Centro, 24210-130 Niterói, RJ, Brazil
| | - Selma R DE Paiva
- Setor de Botânica, Departamento de Biologia Geral, Instituto de Biologia, Universidade Federal Fluminense, Outeiro de São João Batista, s/n, Campus do Valonguinho, Centro, 24210-130 Niterói, RJ, Brazil
| | - Ana Joffily
- Setor de Botânica, Departamento de Biologia Geral, Instituto de Biologia, Universidade Federal Fluminense, Outeiro de São João Batista, s/n, Campus do Valonguinho, Centro, 24210-130 Niterói, RJ, Brazil
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Shang SZ, Xu WX, Lei P, Zhao W, Tang JG, Miao MM, Sun HD, Pu JX, Chen YK, Yang GY. Biphenyls from Nicotiana tabacum and their anti-tobacco mosaic virus. Fitoterapia 2014; 99:35-9. [PMID: 25128901 DOI: 10.1016/j.fitote.2014.08.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2014] [Revised: 08/05/2014] [Accepted: 08/06/2014] [Indexed: 11/17/2022]
Abstract
Five new biphenyls, tababiphenyls A-E (1-5), together with five known ones (5-10), were isolated from the leaves of Nicotiana tabacum, of which compound 1 possessed a seldom reported 6-carbons unit in biphenyls. Their structures were established on the basis of extensive spectroscopic analyses. All compounds were tested for their anti-tobacco mosaic virus (anti-TMV) activities. The results showed that compounds 3 and 5 exhibited high anti-TMV activities with inhibition rate of 48.4% and 32.1%, respectively, which were higher than that of positive control (ningnanmycin). The other compounds also showed potential anti-TMV activities with inhibition rates in the range of 18.6-28.7%, respectively.
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Affiliation(s)
- Shan-Zhai Shang
- Key Laboratory of Tobacco Chemistry of Yunnan Province, China Tobacco Yunnan Industrial Co., Ltd, Kunming 650231, PR China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, PR China
| | - Wen-Xiu Xu
- Key Laboratory of Tobacco Chemistry of Yunnan Province, China Tobacco Yunnan Industrial Co., Ltd, Kunming 650231, PR China; School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Nature Products, Kunming Medical University, Kunming Yunnan 650500, PR China
| | - Ping Lei
- Key Laboratory of Tobacco Chemistry of Yunnan Province, China Tobacco Yunnan Industrial Co., Ltd, Kunming 650231, PR China
| | - Wei Zhao
- Key Laboratory of Tobacco Chemistry of Yunnan Province, China Tobacco Yunnan Industrial Co., Ltd, Kunming 650231, PR China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, PR China
| | - Jian-Guo Tang
- Key Laboratory of Tobacco Chemistry of Yunnan Province, China Tobacco Yunnan Industrial Co., Ltd, Kunming 650231, PR China
| | - Ming-Ming Miao
- Key Laboratory of Tobacco Chemistry of Yunnan Province, China Tobacco Yunnan Industrial Co., Ltd, Kunming 650231, PR China
| | - Han-Dong Sun
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, PR China
| | - Jian-Xin Pu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, PR China
| | - Yong-Kuan Chen
- Key Laboratory of Tobacco Chemistry of Yunnan Province, China Tobacco Yunnan Industrial Co., Ltd, Kunming 650231, PR China.
| | - Guang-Yu Yang
- Key Laboratory of Tobacco Chemistry of Yunnan Province, China Tobacco Yunnan Industrial Co., Ltd, Kunming 650231, PR China.
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Abstract
Investigation of the green fruits of Clusia paralicola (Clusiaceae) led to the isolation and characterization of two 3,8″-biflavonoids, 2R, 3S, 2″R, 3″R-GB1-7″- O-β-glucoside (1) and 2R, 3S, 2″R, 3,8″-binaringenin-7″-O-β-glucoside (2), together with four known compounds: β-sitosterol, stigmasterol, β-amyrin, and epicatechin. The structures were established from the IR, LC-ESI-MS and NMR spectral data, including 2D-NMR experiments. The absolute configurations of 1 and 2 were determined by CD spectra. The total extract and the biflavonoids demonstrated significant antioxidant activity in DPPH, ABTS, and β-carotene/linoleic acid tests.
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A new biphenyl and antimicrobial activity of extracts and compounds from Clusia burlemarxii. Fitoterapia 2011; 82:1237-40. [PMID: 21893172 DOI: 10.1016/j.fitote.2011.08.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2011] [Revised: 08/16/2011] [Accepted: 08/17/2011] [Indexed: 11/24/2022]
Abstract
Phytochemical investigation on Clusia burlemarxii (Clusiaceae) led to isolation and identification of nine compounds. Were isolated from leaves 3-O-α-L- rhamnopyranosylquercetin, 3-O-α-L-rhamnopyranosylkaempferol, 4-hydroxy-5,5-dimethyldihydrofuran-2-one, 2Z-δ-tocotrienoloic acid and friedelin and were isolated from trunk betulinic acid, protocatechuic acid, lyoniresinol, and a new biphenyl 2,2-dimethyl-3,5-dihydroxy-7-(4-hydroxyphenyl)chromane. The structures were determined by ¹H, ¹³C-NMR, DEPT, HMBC, HMQC, HRESIMS. The Minimal Inhibitory Concentration against Streptococcus mutans, Staphylococcus aureus, Bacillus subtilis, Micrococcus luteus, Escherichia coli, Salmonella choleraesuis, Pseudomonas aeruginosa, Aspergillus niger and Cladosporium cladosporioides was also determined. Extracts and compounds showed significant activity against tested Gram-positive bacteria, none activity against tested Gram-negative bacteria and fungi.
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Shiu WKP, Gibbons S. Dibenzofuran and pyranone metabolites from Hypericum revolutum ssp. revolutum and Hypericum choisianum. PHYTOCHEMISTRY 2009; 70:403-406. [PMID: 19200564 DOI: 10.1016/j.phytochem.2008.12.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2008] [Revised: 12/08/2008] [Accepted: 12/11/2008] [Indexed: 05/27/2023]
Abstract
In a project to isolate and characterise anti-staphylococcal compounds from members of the genus Hypericum, a dibenzofuran and a pyranone were isolated from the dichloromethane and hexane extracts of Hypericum revolutum ssp. revolutum Vahl (Guttiferae) and Hypericum choisianum Wall. ex. N. Robson (Guttiferae), respectively. The structures of these compounds were elucidated by 1- and 2D-NMR spectroscopy and mass spectrometry as 3-hydroxy-1,4,7-trimethoxydibenzofuran (1) and 4-(3-O-3'')-3''-methylbutenyl-6-phenyl-pyran-2-one (2). The metabolites were evaluated against a panel of multidrug-resistant strains of Staphylococcus aureus. Compound 1 exhibited a minimum inhibitory concentration (MIC) of 256 microg/ml, whereas compound 2 was inactive at a concentration of 512 microg/ml.
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Affiliation(s)
- Winnie Ka Po Shiu
- Centre for Pharmacognosy and Phytotherapy, The School of Pharmacy, University of London, 29-39 Brunswick Square, London WC1N 1AX, UK
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de Oliveira JCS, Neves IA, da Camara CAG, Schwartz MOE. Volatile Constituents of the Fruits ofClusia nemorasaG.Mey. from Different Region of Atlantic Coast restingas of Pernambuco (Northeast of Brazil). JOURNAL OF ESSENTIAL OIL RESEARCH 2008. [DOI: 10.1080/10412905.2008.9699996] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Balunas MJ, Jones WP, Chin YW, Mi Q, Farnsworth NR, Soejarto DD, Cordell GA, Swanson SM, Pezzuto JM, Chai HB, Kinghorn AD. Relationships between inhibitory activity against a cancer cell line panel, profiles of plants collected, and compound classes isolated in an anticancer drug discovery project. Chem Biodivers 2007; 3:897-915. [PMID: 17193321 DOI: 10.1002/cbdv.200690092] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In an attempt to determine the relationships between the plant profiles (country of collection, taxonomy, plant part) and the compound classes isolated with cytotoxic activity against a panel of human tumor cell lines, the data compiled from a 15-year anticancer drug-discovery project were subjected to an analysis of variance (ANOVA). The results indicate significant trends in cytotoxic activity relative to collection location, taxonomy, plant part, and compound classes isolated. Plant collections were made in tropical forests in six countries, with collections from Ecuador resulting in higher activity than those from Indonesia and Peru. Interestingly, collections from Florida were not statistically different than those from the countries with higher biodiversity. One hundred and forty-five families were represented in the collections, with the Clusiaceae, Elaeocarpaceae, Meliaceae, and Rubiaceae having low ED50 (half maximal effective dose) values. Especially active genera included Aglaia, Casearia, Exostema, Mallotus, and Trichosanthes. Roots and below-ground plant materials were significantly more active than above-ground materials. Cucurbitacins, flavaglines, anthraquinones, fatty acids, tropane alkaloids, lignans, and sesquiterpenoids were significantly more active than xanthones and oligorhamnosides. The results from this study should serve as a guide for future plant collection endeavors for anticancer drug discovery.
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Affiliation(s)
- Marcy J Balunas
- Program for Collaborative Research in the Pharmaceutical Sciences and Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street (M/C 781), Chicago, IL 60612, USA
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17
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Stereoselective synthesis of chiral atropisomerically stable ferrocenyldiols containing a biphenyl unit. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.tetasy.2005.08.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Jayanth TT, Jeganmohan M, Cheng CH. Highly Efficient Route to o-Allylbiaryls via Palladium-Catalyzed Three-Component Coupling of Benzynes, Allylic Halides, and Aryl Organometallic Reagents. Org Lett 2005; 7:2921-4. [PMID: 15987170 DOI: 10.1021/ol050859r] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] o-Allylbiaryl derivatives have been prepared in good to excellent yields by the palladium-catalyzed three-component reaction of allyl halides, benzynes, and aryl organometallic reagents.
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19
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Ma J, Jones SH, Hecht SM. Phenolic acid amides: a new type of DNA strand scission agent from Piper caninum. Bioorg Med Chem 2004; 12:3885-9. [PMID: 15210155 DOI: 10.1016/j.bmc.2004.05.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2004] [Accepted: 05/01/2004] [Indexed: 10/26/2022]
Abstract
In a survey of the active components of crude plant extracts for their ability to cleave DNA, a crude extract prepared from Piper caninum was found to induce the relaxation of supercoiled pBR322 plasmid DNA in the presence of Cu(2+). Bioassay-guided fractionation was carried out on this extract, guided by an in vitro DNA strand scission assay. Three active principles were isolated and identified as N-cis-feruloyl tyramine (1),N-trans-feruloyl tyramine (2), and 1-cinnamoylpyrrolidine (3). Compounds 1-3 represent a structurally new type of DNA strand scission agent.
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Affiliation(s)
- Ji Ma
- Department of Chemistry, University of Virginia, Charlottesville, VA, 22901, USA
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20
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Mar W, Lee HT, Je KH, Choi HY, Seo EK. A DNA strand-nicking principle of a higher plant, Caesalpinia sappan. Arch Pharm Res 2003; 26:147-50. [PMID: 12643592 DOI: 10.1007/bf02976661] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
To find anticancer agents from higher plants, DNA strand-scission assay method was employed for bioassay-guided fractionation as well as for screening the crude extracts. During the screening, an ethyl acetate extracts of the heartwood of Caesalpinia sappan L. (Leguminosae) exhibited potent DNA strand-scission activity. Therefore, the ethyl acetate extracts of the dried heartwood of C. sappan was subjected to the bioassay-guided fractionation, which led to the isolation of a known compound, brazilin (1) as the active constituent. In addition, caesalpine J (2) was also isolated as an inactive constituent.
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Affiliation(s)
- Woongchon Mar
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 110-460, Korea
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21
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Seo EK, Lee D, Shin YG, Chai HB, Navarro HA, Kardono LBS, Rahman I, Cordell GA, Farnsworth NR, Pezzuto JM, Kinghorn AD, Wani MC, Wall ME. Bioactive prenylated flavonoids from the stem bark of Artocarpus kemando. Arch Pharm Res 2003; 26:124-7. [PMID: 12643587 DOI: 10.1007/bf02976656] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Four known prenylated flavonoids, artonins E (1) and O (2), artobiloxanthone (3), and cycloartobiloxanthone (4), were isolated from the stem bark of Artocarpus kemando by bioassay-guided fractionation using the DNA strand-scission and the KB cytotoxicity assays as monitors. Compounds 1 and 3 exhibited strong DNA strand-scission activity, and all four compounds were found to be cytotoxic.
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Affiliation(s)
- Eun-Kyoung Seo
- Chemistry and Life Sciences, Research Triangle Institute, PO Box 12194, Research Triangle Park, North Carolina 27709, USA
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22
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The first total synthesis and neurotrophic activity of clusiparalicoline A, a prenylated and geranylated biaryl from Clusia paralicola. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)01630-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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