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Sharma MK, Tiwari B, Hussain N. Pd-catalyzed stereoselective synthesis of chromone C-glycosides. Chem Commun (Camb) 2024; 60:4838-4841. [PMID: 38619439 DOI: 10.1039/d4cc00486h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
Herein, we present an efficient Pd-catalysed method for stereoselective synthesis of chromone C-glycosides from various glycals. We successfully applied this method to various glycals with different protecting groups, yielding the corresponding glycosides in 41-78% yields. Additionally, we investigated the potential of this approach for the late-stage modification of natural products and pharmaceutical compounds linked to glycals, leading to the synthesis of their respective glycosides. Furthermore, we extended our research to gram-scale synthesis and demonstrated its applicability in producing various valuable products, including 2-deoxy-chromone C-glycosides. In summary, our work introduces a novel library of chromone glycosides, which holds promise for advancing drug discovery efforts.
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Affiliation(s)
- Manish Kumar Sharma
- Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi-221005, India.
| | - Bindu Tiwari
- Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi-221005, India.
| | - Nazar Hussain
- Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi-221005, India.
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2
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Liu L, Liu H, Yan H, Guo H, Bai L. Separation and purification of glycosides from medicinal plants based on strong polar separation medium with online closed-loop mode. J Pharm Biomed Anal 2023; 234:115508. [PMID: 37295190 DOI: 10.1016/j.jpba.2023.115508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 06/03/2023] [Accepted: 06/05/2023] [Indexed: 06/12/2023]
Abstract
Natural glycosides widely distributed in medicinal plants are valuable sources of therapeutic agents, showing various pharmacological effects. The separation and purification of natural glycosides are meaningful for their pharmacological research, which face with great challenges due to the complex of medicinal plants samples. In this work, two kinds of functional monolithic separation mediums A and S were fabricated and fully applied in the online extraction, separation and purification of active glycoside components from medicinal plants with a simple-procedure closed-loop mode. Chrysophanol glucoside and physcion glucoside were detected and separated from Rhei Radix et Rhizoma using separation medium A as a solid-phase extraction adsorbent. Rhapontin was isolated and purified from Rheum hotaoense C. Y. Cheng et Kao using separation medium S as the stationary phase of high-performance liquid chromatography. Compared to the reported literatures, high yield of 5.68, 1.20 and 4.76 mg g-1 of these three products were obtained with high purity. These two online closed-loop mode methods were carried out using high-performance liquid chromatography system, in which the sample injection, isolation and purification procedures are all online mode, and reduced loss compared to offline extraction and purification procedures, thus achieving high recovery and high purity.
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Affiliation(s)
- Lu Liu
- College of Pharmaceutical Sciences, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Public Health Safety of Hebei Province, Hebei University, Baoding 071002, China
| | - Haiyan Liu
- College of Pharmaceutical Sciences, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Public Health Safety of Hebei Province, Hebei University, Baoding 071002, China
| | - Hongyuan Yan
- College of Pharmaceutical Sciences, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Public Health Safety of Hebei Province, Hebei University, Baoding 071002, China
| | - Huaizhong Guo
- College of Pharmaceutical Sciences, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Public Health Safety of Hebei Province, Hebei University, Baoding 071002, China
| | - Ligai Bai
- College of Pharmaceutical Sciences, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Key Laboratory of Public Health Safety of Hebei Province, Hebei University, Baoding 071002, China.
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Kim CK, Yu S, Lee M. Molecular networking-guided isolation strategy of a new C-glycosyl flavone rotamer from Stellaria alsine and evaluation of anti-inflammatory and antioxidant activities. Metabolomics 2023; 19:79. [PMID: 37670170 DOI: 10.1007/s11306-023-02042-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 08/21/2023] [Indexed: 09/07/2023]
Abstract
INTRODUCTION Stellaria alsine has traditionally been used as both a famine relief food and an alternative medicine in East Asia. Modern pharmacological studies have revealed that S. alsine has various biological effects such as anticancer, anti-hepatoma, anti-inflammatory, and antioxidative effects. However, the anti-inflammatory properties of chemical constituents derived from this plant have not been studied well. OBJECTIVES To identify potential therapeutic candidate for treating inflammatory diseases such as inflammatory bowel disease (IBD). METHODS The distribution of chemical compounds was investigated by Global Natural Product Social (GNPS)-based molecular networking (MN) analysis using UPLC-Orbitrap tandem mass spectrometry. The anti-inflammatory and antioxidative effects of S. alsine extracts and fractions were evaluated by measuring interleukin (IL)-8 and reactive oxygen species (ROS) productions. RESULTS The active EA layer of S. alsine showed the highest percentage of major compounds by feature-based molecular networking. The top candidate structures of EA fraction were rapidly annotated as flavone C- or O-glycosides via an advanced analysis tool, Network Annotation Propagation (NAP). With the GNPS molecular networking-guided isolation strategy, a new C-glycosyl flavone rotamer (1) was isolated. The structures of the major (1a) and minor (1b) rotational isomers were determined by extensive NMR analysis and MS/MS fragmentation. Finally, the anti-inflammatory activity of 1 was predicted by molecular docking simulations with IL-8 protein. CONCLUSION These results suggested that the compound 1 is a potential therapeutic candidate for inflammatory bowel disease (IBD).
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Affiliation(s)
- Chang-Kwon Kim
- College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, 255 Jungangno, Suncheon, 57922, Jeonnam, Korea
| | - Soojung Yu
- Department of Natural Cosmetics Science, Graduate School, Sunchon National University, 255 Jungangno, Suncheon, 57922, Jeonnam, Korea
| | - Mina Lee
- College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, 255 Jungangno, Suncheon, 57922, Jeonnam, Korea.
- Department of Natural Cosmetics Science, Graduate School, Sunchon National University, 255 Jungangno, Suncheon, 57922, Jeonnam, Korea.
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Krstić G, Saidu MB, Barta A, Vágvölgyi M, Ali H, Zupkó I, Berkecz R, Gallah US, Rédei D, Hohmann J. Anticancer Meroterpenoids from Centrapalus pauciflorus leaves: Chromone- and 2,4-Chromadione-Monoterpene Derivatives. ACS Omega 2023; 8:31389-31398. [PMID: 37663471 PMCID: PMC10468835 DOI: 10.1021/acsomega.3c03884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 07/24/2023] [Indexed: 09/05/2023]
Abstract
Eight previously undescribed chromones, named pauciflorins F-M and two 5-methyl-2,4-chromadione derivatives named as pauciflorins N and O, were isolated from the methanol extract of the leaves of Centrapalus pauciflorus (Willd.) H.Rob. together with the known (+)-spiro-ethuliacoumarin. The structures were determined via extensive spectroscopic analyses, including HRESIMS, 1D NMR (1H, 13C JMOD), and 2D NMR (HSQC, HMBC, 1H-1H COSY, and NOESY) experiments. Through an MTT assay, seven isolated compounds were tested for their antiproliferative properties against human adherent breast (MCF-7, MDA-MB-231), cervical (HeLa, SiHa), and ovarian (A2780) cancer cell lines. Pauciflorin F was effective against MCF-7 breast cancer cells, its activity (IC50 5.78 μM) was comparable to that of the reference agent cisplatin (IC50 5.78 μM).
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Affiliation(s)
- Gordana Krstić
- Department
of Pharmacognosy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary
- University
of Belgrade, Faculty of Chemistry, Studentski trg 12-16, 11158 Belgrade, Serbia
| | - Muhammad Bello Saidu
- Department
of Pharmacognosy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary
| | - Anita Barta
- Department
of Pharmacognosy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary
| | - Máté Vágvölgyi
- Department
of Pharmacognosy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary
| | - Hazhmat Ali
- Institute
of Pharmacodynamics and Biopharmacy, University
of Szeged, Eötvös
u. 6, 6720 Szeged, Hungary
| | - István Zupkó
- Institute
of Pharmacodynamics and Biopharmacy, University
of Szeged, Eötvös
u. 6, 6720 Szeged, Hungary
| | - Róbert Berkecz
- Institute
of Pharmaceutical Analysis, University of
Szeged, Somogyi u. 4, 6720 Szeged, Hungary
| | - Umar Shehu Gallah
- Bioresource
Department, National Research Institute
for Chemical Technology (NARICT), Zaria 1052, Nigeria
| | - Dóra Rédei
- Department
of Pharmacognosy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary
| | - Judit Hohmann
- Department
of Pharmacognosy, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary
- ELKH-USZ
Biologically Active Natural Products Research Group, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary
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Takahashi JA. Special Issue-"Isolation, Structure Elucidation and Biological Activity of Natural Products". Molecules 2023; 28:5392. [PMID: 37513264 PMCID: PMC10383114 DOI: 10.3390/molecules28145392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2023] Open
Abstract
This Special Issue of Molecules gathers fourteen research studies and three review papers covering developments in the scope of the isolation, structure elucidation and biological activity of natural products [...].
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Affiliation(s)
- Jacqueline Aparecida Takahashi
- Exact Sciences Institute, Universidade Federal de Minas Gerais (UFMG), Av. Antonio Carlos, 6627, Belo Horizonte 31270-901, Brazil
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Wang Y, Huang W, Tian W, Mo T, Yan Y, Cui X, Liu X. Enzymatic biosynthesis of novel 2-(2-phenylethyl)chromone glycosides catalyzed by UDP-glycosyltransferase UGT71BD1. Biochem Biophys Res Commun 2023; 671:80-86. [PMID: 37300944 DOI: 10.1016/j.bbrc.2023.05.128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023]
Abstract
2-(2-Phenylethyl)chromones (PECs) are the main bioactive components of agarwood which showed diverse pharmaceutical activities. Glycosylation is a useful structural modification method to improve compounds' druggability. However, PEC glycosides were rarely reported in nature which largely limited their further medicinal investigations and applications. In this study, the enzymatic glycosylation of four naturally separated PECs 1-4 was achieved using a promiscuous glycosyltransferase UGT71BD1 identified from Cistanche tubulosa. It could accept UDP-Glucose, UDP-N-acetylglucosamine and UDP-xylose as sugar donors and conduct the corresponding O-glycosylation of 1-4 with high conversion efficiencies. Three O-glucosylated products 1a (5-hydroxy-2-(2-phenylethyl)chromone 8-O-β-D-glucopyranoside), 2a (8-chloro-2-(2-phenylethyl)chromone 6-O-β-D-glucopyranoside) and 3a (2-(2-phenylethyl)chromone 6-O-β-D-glucopyranoside) were prepared and structurally elucidated as novel PEC glucosides based on NMR spectroscopic analyses. Subsequent pharmaceutical evaluation found that 1a showed remarkably improved cytotoxicity against HL-60 cells, whose cell inhibition rate was 19 times higher than that of its aglycon 1. The IC50 value of 1a was further determined to be 13.96 ± 1.10 μM, implying its potential as a promising antitumor-leading candidate. To improve the production of 1, docking, simulation and site-directed mutagenesis were performed. The important role of P15 in the glucosylation of PECs was discovered. Besides, a mutant K288A with a two-fold increased yield for 1a production was also afforded. This research reported the enzymatic glycosylation of PECs for the first time, and also provide an eco-friendly pathway for the alternative production of PEC glycosides for leading compounds discovery.
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Affiliation(s)
- Yingxia Wang
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Wenqian Huang
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Weisheng Tian
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Ting Mo
- Ningxia Hui Medicine Research Institute, Yinchuan, 750021, People's Republic of China
| | - Yaru Yan
- Shanxi University of Chinese Medicine, Jinzhong, 030619, China
| | - Xiaoxue Cui
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Xiao Liu
- Modern Research Center for Traditional Chinese Medicine, School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, 100029, China.
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Zhou Y, Wang D, Yan W. Treatment Effects of Natural Products on Inflammatory Bowel Disease In Vivo and Their Mechanisms: Based on Animal Experiments. Nutrients 2023; 15:nu15041031. [PMID: 36839389 PMCID: PMC9967064 DOI: 10.3390/nu15041031] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 02/11/2023] [Accepted: 02/13/2023] [Indexed: 02/22/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic, non-specific inflammatory disease of the intestine that can be classified as ulcerative colitis (UC) and Crohn's disease (CD). Currently, the incidence of IBD is still increasing in developing countries. However, current treatments for IBD have limitations and do not fully meet the needs of patients. There is a growing demand for new, safe, and highly effective alternative drugs for IBD patients. Natural products (NPs) are used in drug development and disease treatment because of their broad biological activity, low toxicity, and low side effects. Numerous studies have shown that some NPs have strong therapeutic effects on IBD. In this paper, we first reviewed the pathogenesis of IBD as well as current therapeutic approaches and drugs. Further, we summarized the therapeutic effects of 170 different sources of NPs on IBD and generalized their modes of action and therapeutic effects. Finally, we analyzed the potential mechanisms of NPs for the treatment of IBD. The aim of our review is to provide a systematic and credible summary, thus supporting the research on NPs for the treatment of IBD and providing a theoretical basis for the development and application of NPs in drugs and functional foods.
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Affiliation(s)
- Yaxi Zhou
- College of Biochemical Engineering, Beijing Union University, Beijing 100023, China
- Beijing Key Laboratory of Bioactive Substances and Functional Food, Beijing Union University, Beijing 100023, China
| | - Diandian Wang
- College of Biochemical Engineering, Beijing Union University, Beijing 100023, China
- Beijing Key Laboratory of Bioactive Substances and Functional Food, Beijing Union University, Beijing 100023, China
| | - Wenjie Yan
- College of Biochemical Engineering, Beijing Union University, Beijing 100023, China
- Beijing Key Laboratory of Bioactive Substances and Functional Food, Beijing Union University, Beijing 100023, China
- Correspondence: ; Tel.: +86-010-6238-8926
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Wang B, Hu Y, Guo H, Tao L. Synthesis of Chromone‐Spiroindolinone‐Cyclopentene Derivatives through Phosphine‐Catalyzed (3+2) Annulation of Morita‐Baylis‐Hillman Carbonates with Oxindole‐Chromones. ChemistrySelect 2022; 7. [DOI: 10.1002/slct.202203340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Lai JR, Yin FD, Guo QS, Yuan F, Nian BF, Zhang M, Wu ZB, Zhang HB, Tang E. Silver-catalysed three-component reactions of alkynyl aryl ketones, element selenium, and boronic acids leading to 3-organoselenylchromones. Org Biomol Chem 2022; 20:5104-5114. [PMID: 35703142 DOI: 10.1039/d2ob00696k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An Ag-catalysed three-component reaction of alkynyl aryl ketones bearing an ortho-methoxy group, element selenium, and arylboronic acid, providing a facile route to selenofunctionalized chromone products has been developed. This protocol features high efficiency and high regioselectivity, and the use of selenium powder as the selenium source. Mechanistic experiments indicated that the combined oxidative effect of (bis(trifluoroacetoxy)iodo)benzene and oxygen in the air pushes the catalytic redox cycle of the Ag catalyst and the phenylselenium trifluoroacetate formed in situ is the key intermediate of the PIFA-mediated 6-endo-electrophilic cyclization and selenofunctionalization reaction of alkynyl aryl ketones.
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Affiliation(s)
- Jin-Rong Lai
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - Fu-Dan Yin
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - Qing-Song Guo
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - Fei Yuan
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - Bei-Fang Nian
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - Ming Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - Zhi-Bang Wu
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - Hong-Bin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
| | - E Tang
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China.
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