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Patel DK. Medicinal Importance, Pharmacological Activities, and Analytical Aspects of Strictinin: A Mini-Review. RECENT ADVANCES IN ANTI-INFECTIVE DRUG DISCOVERY 2022; 17:86-94. [PMID: 35770392 DOI: 10.2174/2772434417666220628153913] [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: 02/24/2022] [Revised: 05/03/2022] [Accepted: 05/12/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Plants and their derived products have been used in history as food and medicine. Plant materials are rich sources of fiber, minerals, vitamins, and bioactive phytochemicals, which are useful for human beings. Strictinin is an important phytoconstituent of green tea. METHODS Present work mainly focuses on the biological importance, therapeutic potential, and pharmacological activities of strictinin in medicine. Numerous scientific data have been collected from various literature databases such as Google Scholar, Science Direct, PubMed, and Scopus database in order to realize the health beneficial potential of strictinin. Pharmacological data has been collected and analyzed in the present work to find the effectiveness of strictinin against human disorders and complications. Analytical data of strictinin has been also collected and analyzed in the present work. RESULTS Scientific data analysis revealed the biological importance of strictinin in medicine. Scientific data analysis signified the therapeutic benefit of strictinin mainly due to its anticancer, antimicrobial, antibacterial, antiviral, and antioxidant activity. However, enzymatic activities, cytotoxicity, effectiveness on skin disorders, and osteogenic potential of strictinin have also been discussed. Analytical data revealed the importance of modern analytical techniques in medicine for the separation, identification, and isolation of strictinin. CONCLUSION Present work signified the biological importance and therapeutic benefits of strictinin in medicine and other allied health sectors.
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Affiliation(s)
- Dinesh Kumar Patel
- Department of Pharmaceutical Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, 211007, Uttar Pradesh, India
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Yulvianti M, Zidorn C. Chemical Diversity of Plant Cyanogenic Glycosides: An Overview of Reported Natural Products. Molecules 2021; 26:719. [PMID: 33573160 PMCID: PMC7866531 DOI: 10.3390/molecules26030719] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 01/27/2021] [Accepted: 01/27/2021] [Indexed: 12/19/2022] Open
Abstract
Cyanogenic glycosides are an important and widespread class of plant natural products, which are however structurally less diverse than many other classes of natural products. So far, 112 naturally occurring cyanogenic glycosides have been described in the phytochemical literature. Currently, these unique compounds have been reported from more than 2500 plant species. Natural cyanogenic glycosides show variations regarding both the aglycone and the sugar part of the molecules. The predominant sugar moiety is glucose but many substitution patterns of this glucose moiety exist in nature. Regarding the aglycone moiety, four different basic classes can be distinguished, aliphatic, cyclic, aromatic, and heterocyclic aglycones. Our overview covers all cyanogenic glycosides isolated from plants and includes 33 compounds with a non-cyclic aglycone, 20 cyclopentane derivatives, 55 natural products with an aromatic aglycone, and four dihydropyridone derivatives. In the following sections, we will provide an overview about the chemical diversity known so far and mention the first source from which the respective compounds had been isolated. This review will serve as a first reference for researchers trying to find new cyanogenic glycosides and highlights some gaps in the knowledge about the exact structures of already described compounds.
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Affiliation(s)
- Meri Yulvianti
- Department of Pharmaceutical Biology, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany;
- Department of Chemical Engineering, Faculty of Engineering, University of Sultan Ageng Tirtayasa, Serang 42124, Indonesia
- Indonesia Center of Excellence for Food Security, University of Sultan Ageng Tirtayasa, Serang 42124, Indonesia
| | - Christian Zidorn
- Department of Pharmaceutical Biology, Christian-Albrechts-University of Kiel, 24118 Kiel, Germany;
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3
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Han QH, Mu YX, Gong X, Zhang N, Zhang CH, Li MH. Chemical constituents of Medinilla septentrionalis (W. W. Sm.) H. L. Li (Melastomataceae). BIOCHEM SYST ECOL 2019. [DOI: 10.1016/j.bse.2019.05.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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4
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Monoglycerol ester, galloylglucoside and phenolic derivatives from Gymnosporia senegalensis leaves. BIOCHEM SYST ECOL 2019. [DOI: 10.1016/j.bse.2018.12.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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5
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Valverde Malaver CL, Colmenares Dulcey AJ, Rial C, Varela RM, Molinillo JMG, Macías FA, Isaza Martínez JH. Hydrolysable Tannins and Biological Activities of Meriania hernandoi and Meriania nobilis (Melastomataceae). Molecules 2019; 24:E746. [PMID: 30791447 PMCID: PMC6412690 DOI: 10.3390/molecules24040746] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 02/08/2019] [Accepted: 02/15/2019] [Indexed: 01/04/2023] Open
Abstract
A bio-guided study of leaf extracts allowed the isolation of two new macrobicyclic hydrolysable tannins, namely merianin A (1) and merianin B (2), and oct-1-en-3-yl β-xylopyranosyl-(1"-6')-β-glucopyranoside (3) from Meriania hernandoi, in addition to 11 known compounds reported for the first time in the Meriania genus. The structures were elucidated by spectroscopic analyses including one- and two-dimensional NMR techniques and mass spectrometry. The bioactivities of the compounds were determined by measuring the DPPH radical scavenging activity and by carrying out antioxidant power assays (FRAP), etiolated wheat coleoptile assays and phytotoxicity assays on the standard target species Lycopersicum esculentum W. (tomato). Compounds 1 and 2 exhibited the best free radical scavenging activities, with FRS50 values of 2.0 and 1.9 µM, respectively.
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Affiliation(s)
| | - Ana Julia Colmenares Dulcey
- Department of Chemistry, Faculty of Natural and Exact Sciences, Universidad del Valle, GIPNA, Cali 760032, Colombia.
| | - Carlos Rial
- Allelopathy Group, Instituto de Biomoléculas (INBIO), Department of Organic Chemistry, School of Sciences, Universidad de Cadiz, C/República Saharaui 7, 11510-Puerto Real (Cadiz), Spain.
| | - Rosa M Varela
- Allelopathy Group, Instituto de Biomoléculas (INBIO), Department of Organic Chemistry, School of Sciences, Universidad de Cadiz, C/República Saharaui 7, 11510-Puerto Real (Cadiz), Spain.
| | - José M G Molinillo
- Allelopathy Group, Instituto de Biomoléculas (INBIO), Department of Organic Chemistry, School of Sciences, Universidad de Cadiz, C/República Saharaui 7, 11510-Puerto Real (Cadiz), Spain.
| | - Francisco A Macías
- Allelopathy Group, Instituto de Biomoléculas (INBIO), Department of Organic Chemistry, School of Sciences, Universidad de Cadiz, C/República Saharaui 7, 11510-Puerto Real (Cadiz), Spain.
| | - José Hipólito Isaza Martínez
- Department of Chemistry, Faculty of Natural and Exact Sciences, Universidad del Valle, GIPNA, Cali 760032, Colombia.
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Baatouche S, Cheriet T, Sarri D, Mekkiou R, Boumaza O, Benayache S, Benayache F, Brouard I, León F, Seghiri R. Centaurea microcarpa Coss. & Dur. (Asteraceae) extracts: New cyanogenic glucoside and other constituents. Nat Prod Res 2018; 33:3070-3076. [PMID: 30445872 DOI: 10.1080/14786419.2018.1517343] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The phytochemical investigation of both chloroform and ethyl acetate extracts of Centaurea microcarpa Coss. & Dur. led to the isolation of a new cyanogenic glucoside 6'-methacrylate prunasin (3) together with seven known compounds: hydroxy-11β,13-dihydro onopordaldehyde (1), β-sitosterol (2), daucosterol (4), nepetin (5), prunasin (6), astragalin (7) and 7-O-β-D-glucopyranosyl centaureidin (8). Their structures were established by spectral analysis, mainly UV, IR, ESI-MS, 1D & 2D-NMR experiments (COSY, HSQC, HMBC and ROESY).
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Affiliation(s)
- Samia Baatouche
- Unité de recherche Valorisation des Ressources Naturelles, Molécules Bioactives et Analyses Physicochimiques et Biologiques (VARENBIOMOL), Université des Frères Mentouri Constantine , Constantine , Algérie
| | - Thamere Cheriet
- Unité de recherche Valorisation des Ressources Naturelles, Molécules Bioactives et Analyses Physicochimiques et Biologiques (VARENBIOMOL), Université des Frères Mentouri Constantine , Constantine , Algérie.,Département de chimie, Faculté des sciences, Université Mohammed Boudiaf-M'sila , M'sila , Algérie
| | - Djamel Sarri
- Département de Biologie, Faculté des sciences, Université Mohammed Boudiaf-M'Sila , M'Sila , Algérie
| | - Ratiba Mekkiou
- Unité de recherche Valorisation des Ressources Naturelles, Molécules Bioactives et Analyses Physicochimiques et Biologiques (VARENBIOMOL), Université des Frères Mentouri Constantine , Constantine , Algérie
| | - Ouahiba Boumaza
- Unité de recherche Valorisation des Ressources Naturelles, Molécules Bioactives et Analyses Physicochimiques et Biologiques (VARENBIOMOL), Université des Frères Mentouri Constantine , Constantine , Algérie
| | - Samir Benayache
- Unité de recherche Valorisation des Ressources Naturelles, Molécules Bioactives et Analyses Physicochimiques et Biologiques (VARENBIOMOL), Université des Frères Mentouri Constantine , Constantine , Algérie
| | - Fadila Benayache
- Unité de recherche Valorisation des Ressources Naturelles, Molécules Bioactives et Analyses Physicochimiques et Biologiques (VARENBIOMOL), Université des Frères Mentouri Constantine , Constantine , Algérie
| | - Ignacio Brouard
- Instituto de Productos Naturales y Agrobiología-CSIC, Instituto Universitario de Bio-Orgánica 'Antonio González', Universidad de La Laguna , La Laguna , Tenerife , Spain
| | - Francisco León
- Instituto de Productos Naturales y Agrobiología-CSIC, Instituto Universitario de Bio-Orgánica 'Antonio González', Universidad de La Laguna , La Laguna , Tenerife , Spain
| | - Ramdane Seghiri
- Unité de recherche Valorisation des Ressources Naturelles, Molécules Bioactives et Analyses Physicochimiques et Biologiques (VARENBIOMOL), Université des Frères Mentouri Constantine , Constantine , Algérie
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Serna DMO, Martínez JHI. Phenolics and Polyphenolics from Melastomataceae Species. Molecules 2015; 20:17818-47. [PMID: 26404220 PMCID: PMC6332314 DOI: 10.3390/molecules201017818] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 08/31/2015] [Accepted: 09/07/2015] [Indexed: 11/16/2022] Open
Abstract
The Melastomataceae family, the seventh largest flowering plants, has been studied in several fronts of natural product chemistry, including terpenoids, simple phenolics, flavonoids, quinones, lignans and their glycosides, as well as a vast range of tannins or polyphenols. This review concerns the phenolic and polyphenolic metabolites described in the literature for several genera of this family, the mode of isolation and purification, and the structure elucidation of these new natural products that has been achieved by extensive spectral analyses, including ESI-MS, ¹H-, (13)C-NMR spectra and two-dimensional experiments, COSY, TOCSY, J-resolved, NOESY, HMQC, DEPT, and HMBC, as well as chemical and enzymatic degradations and the chemotaxonomic meaning. Finally, a general biogenetic pathway map for ellagitannins is proposed on the bases of the most plausible free radical C-O oxidative coupling.
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Affiliation(s)
- Diana Marcela Ocampo Serna
- Grupo de Investigación en Productos Naturales y Alimentos (GIPNA), Departamento de Química, Facultad de Ciencias Naturales y Exactas, Universidad del Valle, Edificio 320, Oficina 2096, Ciudad Universitaria-Meléndez, Calle 13 No. 100-00, Cali 760032, Colombia.
- Departamento de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Caldas, Calle 65 No. 26-10, Manizales 170004, Colombia.
| | - José Hipólito Isaza Martínez
- Grupo de Investigación en Productos Naturales y Alimentos (GIPNA), Departamento de Química, Facultad de Ciencias Naturales y Exactas, Universidad del Valle, Edificio 320, Oficina 2096, Ciudad Universitaria-Meléndez, Calle 13 No. 100-00, Cali 760032, Colombia.
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Michihata N, Kaneko Y, Kasai Y, Tanigawa K, Hirokane T, Higasa S, Yamada H. High-Yield Total Synthesis of (−)-Strictinin through Intramolecular Coupling of Gallates. J Org Chem 2013; 78:4319-28. [DOI: 10.1021/jo4003135] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Naoki Michihata
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan
| | - Yuki Kaneko
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan
| | - Yusuke Kasai
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan
| | - Kotaro Tanigawa
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan
| | - Tsukasa Hirokane
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan
| | - Sho Higasa
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan
| | - Hidetoshi Yamada
- School of Science and Technology, Kwansei Gakuin University, 2-1 Gakuen, Sanda 669-1337, Japan
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Li H, Matsuura M, Li W, Li Q, Zhang Q, Koike K. Chemical constituents from the fruits of Sorbus pohuashanensis. BIOCHEM SYST ECOL 2012. [DOI: 10.1016/j.bse.2012.03.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Neilson EH, Goodger JQD, Motawia MS, Bjarnholt N, Frisch T, Olsen CE, Møller BL, Woodrow IE. Phenylalanine derived cyanogenic diglucosides from Eucalyptus camphora and their abundances in relation to ontogeny and tissue type. PHYTOCHEMISTRY 2011; 72:2325-34. [PMID: 21945721 DOI: 10.1016/j.phytochem.2011.08.022] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Revised: 08/16/2011] [Accepted: 08/19/2011] [Indexed: 05/22/2023]
Abstract
The cyanogenic glucoside profile of Eucalyptus camphora was investigated in the course of plant ontogeny. In addition to amygdalin, three phenylalanine-derived cyanogenic diglucosides characterized by unique linkage positions between the two glucose moieties were identified in E. camphora tissues. This is the first time that multiple cyanogenic diglucosides have been shown to co-occur in any plant species. Two of these cyanogenic glucosides have not previously been reported and are named eucalyptosin B and eucalyptosin C. Quantitative and qualitative differences in total cyanogenic glucoside content were observed across different stages of whole plant and tissue ontogeny, as well as within different tissue types. Seedlings of E. camphora produce only the cyanogenic monoglucoside prunasin, and genetically based variation was observed in the age at which seedlings initiate prunasin biosynthesis. Once initiated, total cyanogenic glucoside concentration increased throughout plant ontogeny with cyanogenic diglucoside production initiated in saplings and reaching a maximum in flower buds of adult trees. The role of multiple cyanogenic glucosides in E. camphora is unknown, but may include enhanced plant defense and/or a primary role in nitrogen storage and transport.
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Affiliation(s)
- Elizabeth H Neilson
- School of Botany, The University of Melbourne, Melbourne, Victoria 3010, Australia.
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Tan HP, Ling SK, Chuah CH. One- and two-dimensional Fourier transform infrared correlation spectroscopy of Phyllagathis rotundifolia. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.09.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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13
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Tan HP, Wong DZH, Ling SK, Chuah CH, Kadir HA. Neuroprotective activity of galloylated cyanogenic glucosides and hydrolysable tannins isolated from leaves of Phyllagathis rotundifolia. Fitoterapia 2011; 83:223-9. [PMID: 22093753 DOI: 10.1016/j.fitote.2011.10.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Revised: 10/25/2011] [Accepted: 10/31/2011] [Indexed: 12/25/2022]
Abstract
The galloylated cyanogenic glucosides based on prunasin (1-7), gallotannins (8-14), ellagitannins (15-17), ellagic acid derivatives (18, 19) and gallic acid (20) isolated from the leaves of Phyllagathis rotundifolia (Melastomataceae) were investigated for their neuroprotective activity against hydrogen peroxide (H(2)O(2))-induced oxidative damage in NG108-15 hybridoma cell line. Among these compounds, the gallotannins and ellagitannins exhibited remarkable neuroprotective activities against oxidative damage in vitro as compared to galloylated cyanogenic glucosides and ellagic acid derivatives in a dose-dependent manner. They could be explored further as potential natural neuroprotectors in various remedies of neurodegenerative diseases.
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Affiliation(s)
- Hooi Poay Tan
- Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.
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Hooi Poay T, Sui Kiong L, Cheng Hock C. Characterisation of galloylated cyanogenic glucosides and hydrolysable tannins from leaves of Phyllagathis rotundifolia by LC-ESI-MS/MS. PHYTOCHEMICAL ANALYSIS : PCA 2011; 22:516-525. [PMID: 21495106 DOI: 10.1002/pca.1312] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2010] [Revised: 12/13/2010] [Accepted: 12/14/2010] [Indexed: 05/30/2023]
Abstract
INTRODUCTION Phyllagathis rotundifolia (Jack) Bl. (Melastomataceae) is a creeping herb found in Peninsular Malaysia and Sumatra. Traditionally, a decoction of the leaves is used in the treatment of malaria, fever and stomach ache. OBJECTIVE To provide ESI-MS(n) data which are applicable for chemical fingerprinting of P. rotundifolia to obviate laborious isolation and purification steps. METHODOLOGY The mass spectral data for the compounds isolated from the leaves of P. rotundifolia were obtained by liquid chromatography-electrospray ionisation tandem mass spectrometry. RESULTS The MS fragmentation patterns were obtained for galloylated cyanogenic glucosides based on prunasin (prunasin 6′‐O‐gallate 1, prunasin 2′,6′‐di‐O‐gallate 2, prunasin 3′,6′‐di‐O‐gallate 3, prunasin 4′,6′‐di‐O‐gallate 4, prunasin 2′,3′,6′‐tri‐Ogallate 5, prunasin 3′,4′,6′‐tri‐O‐gallate 6 and prunasin 2′,3′,4′,6′‐tetra‐O‐gallate 7), gallotannins (6‐O‐galloyl‐D‐glucose 8, 3,6‐di‐O‐galloyl‐D‐glucose 9, 1,2,3‐tri‐O‐galloyl‐β‐D‐glucose 10, 1,4,6‐tri‐O‐galloyl‐β‐D‐glucose 11, 3,4,6‐tri‐O‐galloyl‐D‐glucose 12, 1,2,3,6‐tetra‐O‐galloyl‐β‐D‐glucose 13 and 1,2,3,4,6‐penta‐O‐galloyl‐β‐D‐glucose 14), ellagitannins [6‐O‐galloyl‐2,3‐O‐(S)‐hexahydroxy‐diphenoyl‐D‐glucose 15, praecoxin B 16 and pterocarinin C 17], ellagic acid derivatives (3′‐O‐methyl‐3,4‐methylenedioxyellagic acid 4′‐O‐β‐D‐glucopyranoside 18 and 3,3′,4‐tri‐O‐methylellagic acid 4′‐O‐β‐D‐glucopyranoside 19) and gallic acid 20 that were isolated from the leaves of P. rotundifolia. CONCLUSION The ESI-MS(n) technique facilitates identification of galloylated cyanogenic glucosides, hydrolysable tannins and ellagic acid derivatives that were isolated from the leaves of P. rotundifolia. It yields MS(n) spectra that are useful for identification of these compounds in complex samples and permit more complete fingerprinting of plant materials.
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Affiliation(s)
- Tan Hooi Poay
- Department of Chemistry, University of Malaya, 50603, Kuala Lumpur, Malaysia; Medicinal Plants Division, Forest Research Institute Malaysia, 52109 Kepong, Selangor, Malaysia.
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Takemoto JK, Davies NM. Method development for β-glucogallin and gallic acid analysis: Application to urinary pharmacokinetic studies. J Pharm Biomed Anal 2011; 54:812-6. [DOI: 10.1016/j.jpba.2010.11.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2010] [Revised: 11/01/2010] [Accepted: 11/03/2010] [Indexed: 10/18/2022]
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16
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Li H, Nakashima T, Tanaka T, Zhang YJ, Yang CR, Kouno I. Two new maltol glycosides and cyanogenic glycosides from Elsholtzia rugulosa Hemsl. J Nat Med 2007; 62:75-8. [DOI: 10.1007/s11418-007-0188-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2007] [Accepted: 07/02/2007] [Indexed: 11/29/2022]
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17
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Miller RE, Stewart M, Capon RJ, Woodrow IE. A galloylated cyanogenic glycoside from the Australian endemic rainforest tree Elaeocarpus sericopetalus (Elaeocarpaceae). PHYTOCHEMISTRY 2006; 67:1365-71. [PMID: 16716370 DOI: 10.1016/j.phytochem.2006.03.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2006] [Revised: 03/29/2006] [Accepted: 03/30/2006] [Indexed: 05/09/2023]
Abstract
A cyanogenic glycoside - 6'-O-galloylsambunigrin - has been isolated from the foliage of the Australian tropical rainforest tree species Elaeocarpus sericopetalus F. Muell. (Elaeocarpaceae). This is the first formal characterisation of a cyanogenic constituent in the Elaeocarpaceae family, and only the second in the order Malvales. 6'-O-galloylsambunigrin was identified as the principal glycoside, accounting for 91% of total cyanogen in a leaf methanol extract. Preliminary analyses indicated that the remaining cyanogen content may comprise small quantities of sambunigrin, as well as di- and tri-gallates of sambunigrin. E. sericopetalus was found to have foliar concentrations of cyanogenic glycosides among the highest reported for tree leaves, up to 5.2 mg CN g(-1) dry wt.
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Affiliation(s)
- Rebecca E Miller
- School of Botany, The University of Melbourne, Vic. 3010, Australia.
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Baeza A, Nájera C, Sansano JM, Saá JM. Asymmetric synthesis of O-benzoyl cyanohydrins by reaction of aldehydes with benzoyl cyanide catalysed by BINOLAM–Ti(IV) complexes. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.tetasy.2005.05.031] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
Alkyl and fatty acid glycosides have become of great commercial interest in general and specifically for the pharmaceutical, cosmetic, and food industries. Natural surfactants are good sources for future chemical preparation of these glycosides. This review article shows an astonishing diversity of natural surfactants that could be used in laboratories and industry. More than 250 natural surfactants, including their chemical structures and biological activities, are described in this review article.
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Affiliation(s)
- Valery M Dembitsky
- Department of Organic Chemistry and School of Pharmacy, Hebrew University, Jerusalem, Israel.
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Casas J, Nájera C, Sansano JM, Saá JM. Enantioselective addition of trimethylsilyl cyanide to aldehydes catalysed by bifunctional BINOLAM-AlCl versus monofunctional BINOL-AlCl complexes. Tetrahedron 2004. [DOI: 10.1016/j.tet.2004.06.137] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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