Uses of Voaca Nga Species
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Alkaloids with Anti-Onchocercal Activity from Voacanga Africana Stapf (Apocynaceae): Identification and Molecular Modeling
molecules Article Alkaloids with Anti-Onchocercal Activity from Voacanga africana Stapf (Apocynaceae): Identification and Molecular Modeling Smith B. Babiaka 1,2,*, Conrad V. Simoben 3 , Kennedy O. Abuga 4, James A. Mbah 1, Rajshekhar Karpoormath 5 , Dennis Ongarora 4 , Hannington Mugo 4, Elvis Monya 6, Fidelis Cho-Ngwa 6, Wolfgang Sippl 3 , Edric Joel Loveridge 7,* and Fidele Ntie-Kang 1,3,8,* 1 Department of Chemistry, Faculty of Science, University of Buea, P.O. Box 63, Buea CM-00237, Cameroon; [email protected] 2 AgroEco Health Platform, International Institute of Tropical Agriculture, Cotonou, Abomey-Calavi BEN-00229, Benin 3 Institute for Pharmacy, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Str. 3, 06120 Halle, Germany; [email protected] (C.V.S.); [email protected] (W.S.) 4 Department of Pharmaceutical Chemistry, School of Pharmacy, University of Nairobi, Nairobi P.O. Box 19676–00202, Kenya; [email protected] (K.O.A.); [email protected] (D.O.); [email protected] (H.M.) 5 Department of Pharmaceutical Chemistry, School of Chemistry, University of KwaZulu-Natal, Durban 4001, South Africa; [email protected] 6 ANDI Centre of Excellence for Onchocerciasis Drug Research, Biotechnology Unit, Faculty of Science, University of Buea, P.O. Box 63, Buea CM-00237, Cameroon; [email protected] (E.M.); fi[email protected] (F.C.-N.) 7 Department of Chemistry, Swansea University, Singleton Park, Swansea SA2 8PP, UK 8 Institute of Botany, Technical University of Dresden, 01217 Dresden, Germany * Correspondence: [email protected] or [email protected] (S.B.B.); Citation: Babiaka, S.B.; Simoben, C.V.; [email protected] (E.J.L.); ntiekfi[email protected] or fi[email protected] (F.N.-K.) Abuga, K.O.; Mbah, J.A.; Karpoormath, R.; Ongarora, D.; Abstract: A new iboga-vobasine-type isomeric bisindole alkaloid named voacamine A (1), along with Mugo, H.; Monya, E.; Cho-Ngwa, F.; eight known compounds—voacangine (2), voacristine (3), coronaridine (4), tabernanthine (5), iboxy- Sippl, W.; et al. -
A Review on Tabernaemontana Spp.: Multipotential Medicinal Plant
Online - 2455-3891 Vol 11, Issue 5, 2018 Print - 0974-2441 Review Article A REVIEW ON TABERNAEMONTANA SPP.: MULTIPOTENTIAL MEDICINAL PLANT ANAN ATHIPORNCHAI* Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Burapha University, Bangsaen, Chonburi 20131 Thailand. Email: [email protected] Received: 01 March 2016, Revised and Accepted: 29 January 2018 ABSTRACT Plants in the genus Tabernaemontana have been using in Thai and Chinese traditional medicine for the treatment several diseases. The great majority constituents of Tabernaemontana species have already been subjected to isolation and identification of monoterpene indole alkaloids present in their several parts. Many of monoterpene indole alkaloids exhibited a wide array of several activities. The biogenesis, classification, and biological activities of these alkaloids which found in Tabernaemontana plants were discussed in this review and its brings the research up-to-date on the bioactive compounds produced by Tabernaemontana species, directly or indirectly related to human health. Keywords: Tabernaemontana plants, Phytochemistry, Biogenesis, Terpene indole alkaloids, Biological activities. © 2018 The Authors. Published by Innovare Academic Sciences Pvt Ltd. This is an open access article under the CC BY license (http://creativecommons. org/licenses/by/4. 0/) DOI: http://dx.doi.org/10.22159/ajpcr.2018.v11i5.11478 INTRODUCTION alkaloids are investigated. All monoterpene indole alkaloids are derived from aromatic amino acid tryptophan and the iridoid terpene Several already drugs were discovered from the natural products. secologanin (Scheme 1). Tryptophan converts to tryptamine using Especially, the treatments of infectious diseases and oncology have tryptophan decarboxylase which is a pyridoxal-dependent enzyme. benefited from numerous drugs which were found in natural product The specific iridoid precursor was subsequently identified as sources. -
Gastroprotective Effect of Tabernaemontana Divaricata (Linn.) R.Br
British Journal of Pharmaceutical Research 1(3): 88-98, 2011 SCIENCEDOMAIN international www.sciencedomain.org Gastroprotective Effect of Tabernaemontana divaricata (Linn.) R.Br. Flower Methanolic Extract in Wistar Rats Mohammed Safwan Ali Khan1,2&3* 1Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University Putra Malaysia, Serdang 43400, Selangor Darul Ehsan, Malaysia. 2Department of Pharmacognosy, Anwarul Uloom College of Pharmacy, New Mallepally, Hyderabad 500001, Andhra Pradesh, India. 3Department of Pharmaceutical Sciences, Nims University, Shobha Nagar, Delhi Highway, Jaipur - 303 121, Rajasthan, India. Received 24th April 2011 Accepted 2nd June 2011 Research Article Online Ready 6th June 2011 ABSTRACT Tabernaemontana divaricata (L.) R.Br belonging to Apocynaceae family is traditionally used by people in many parts of the world to treat various disorders. The present study was undertaken to investigate anti-ulcer property of Tabernaemontana divaricata flower methanolic extract (TDFME 500 mg/kg, p.o) by pyloric ligation induced gastric ulceration model using Omeprazole (8mg/kg, p.o) as a standard drug in wistar rats. Five parameters i.e., volume of gastric juice, pH, free & total acidities and ulcer index were assessed. The test extract significantly (p< 0.01) decreased volume of gastric juice, free & total acidities and ulcer index. Like standard, it also raised pH of gastric acid. The observed percentage protection for standard and test were 89.84% and 79.53%, respectively. Thus, TDFME 500 mg/kg had a positive effect on all the parameters under study and the results were similar to that of standard. From the above results, it can be concluded that TDFME exhibits remarkable gastroprotective effect. -
The Iboga Alkaloids
The Iboga Alkaloids Catherine Lavaud and Georges Massiot Contents 1 Introduction ................................................................................. 90 2 Biosynthesis ................................................................................. 92 3 Structural Elucidation and Reactivity ...................................................... 93 4 New Molecules .............................................................................. 97 4.1 Monomers ............................................................................. 99 4.1.1 Ibogamine and Coronaridine Derivatives .................................... 99 4.1.2 3-Alkyl- or 3-Oxo-ibogamine/-coronaridine Derivatives . 102 4.1.3 5- and/or 6-Oxo-ibogamine/-coronaridine Derivatives ...................... 104 4.1.4 Rearranged Ibogamine/Coronaridine Alkaloids .. ........................... 105 4.1.5 Catharanthine and Pseudoeburnamonine Derivatives .. .. .. ... .. ... .. .. ... .. 106 4.1.6 Miscellaneous Representatives and Another Enigma . ..................... 107 4.2 Dimers ................................................................................. 108 4.2.1 Bisindoles with an Ibogamine Moiety ....................................... 110 4.2.2 Bisindoles with a Voacangine (10-Methoxy-coronaridine) Moiety ........ 111 4.2.3 Bisindoles with an Isovoacangine (11-Methoxy-coronaridine) Moiety . 111 4.2.4 Bisindoles with an Iboga-Indolenine or Rearranged Moiety ................ 116 4.2.5 Bisindoles with a Chippiine Moiety ... ..................................... -
Biosynthesis by in Situ Hybridization (ISH)
Localization of monoterpenoid indole alkaloid (MIA) biosynthesis by in situ hybridization (ISH) By Elizabeth Edmunds, Hons. B.Sc. A Thesis Submitted to the Department of Biotechnology In partial fulfillment of the requirements For the degree of Masters of Science August, 2012 Brock University St. Catha rines, Ontario ©Elizabeth Edmunds, 2012 ii Acknowledgments First and foremost I would like to thank Dr. Vincenzo Deluca for the opportunity to work in his laboratory under his mentorship. I have appreciated the helpful insight that has guided me through the course of this project. I have gained a valuable experience being able to learn from such an established and knowledgeable researcher. Secondly, I would like to thank my committee members Dr. Jeffrey Atkinson and Dr. Heather Gordon for their support and advice and their time to serve on my advisory committee. Thirdly, I would like to thank my colleagues and co-workers for their patience and helpful advice throughout my project. Particular mention must be given to Dr. Carlone's lab for their assistance and insight into in situ hybridization techniques. Finally, I would like to express my sincerest gratitude and appreciation towards my family and friends for their support. I would not be where I am today without the support and love from my mother and father, as well as Craig Easton. iii Abstract Monoterpenoid indole alkaloids (MIA) are among the largest and most complex group of nitrogen containing secondary metabolites that are characteristic of the Apocynaceae plant family including the most notable Catharanthus roseus. These compounds have demonstrated activity as successful drugs for treating various cancers, neurological disorders and cardiovascular conditions. -
Tabernaemotana Divaricata
Imperial Journal of Interdisciplinary Research (IJIR) Vol-2, Issue-10, 2016 ISSN: 2454-1362, http://www.onlinejournal.in Quantification of Phytochemicals and HPTLC Finger Printing of Stem and Leaf Extracts of Tabernaemotana divaricata. Dr. Anubha Arora, Dr. Yashwant Rai & Dr. Sunder Pal Department of Botany, V.M.K (P.G) College, Mangalore, Green Planet Welfare Association Meerut, Uttar Pradesh, Department of Chemistry, D.N. (P.G) College, Meerut Abstract: - HPTLC is an analytical technique used It is an evergreen glabrous and dichotomously for the qualitative and quantitative evalution of branched about 2-3 m high shrub and commonly polyherbal formulations. Tabernaemotana called Pinwheel flower, Crape jasmine , East India divaricata an important medicinal plant wide rose bay and Nero’s crown (Dasturet.al 1962). medicinal value is frequently used in a large no of Ethnobotanically have been known to possess traditional herbal preparations. For HPTLC antimicrobial , anthelmintic, antioxidant , curative statinory phase was silica gel 60 F254 plate. The properties against nervous disorders, skin mobile phase consisted of Toluene: Ethylacetate: problems, respiratory and eyeailments,veneral Formic acd (7:2:0.5). In the present study the diseases, diabetes , chronic bronchitis , snake bite Preliminary Phytochemical screening of and cardiotonic ailments.(Ignacimutu et.al 2006 Tabernaemotana divaricata stem and leaf and Sathishkumar et.al 2012). Rootsare extraction has been done to dentify the chemical emmenagogue aphrodisiac tonic ,puragative , constituents and HPTLC fingerprinting of astrigent to the bowels and tonic to the brains , Tabernaemotana divaricata stem and leaf tracts lever and spleen , and useful in paralysis. has been performed which may be used as marks for quality evaluation and standardization of the Rahmanet.al (2011) observed the antibacterial drug. -
Isohtion of Alkaloids and Structural Identification of Two Dimers
Indole Alkaloids from Ervatamia ouientaiis. I Isohtion of Alkaloids and Structural Identification of Two Dimers ., John R. Knox and Jacob Slobbe I 9 1;:’ ,di Department of Organic Chemistry, University of Western Australia, ,;,, ,A>.i I Nedlands, W.A. 6009. Abstract Ethanol extracts of Eruafamia orientalis have yielded the following known alkaloids: ibogaine, iboxygaine, voacristine, vobasine, dregamine, tabernaemontanine, apparicine, voacamine and 16-demethoxycarbonylvoacamine. In addition, two new dimeric alkaloids of the voacamine group and the novel 2-acylindoles ervatamine, 2O-epiervatamine and 19-dehydroervatamine have been isolated from the extracts. The two new dimeric compounds have been identified by physical and chemical methods as lddemethoxycarbonyldihydrovoacamine and 16-demethoxycarbonyl-20’-epi- dihydrovoacamine. Plants classified in the Tabernaemontaneaetribe (Apocynaceae) have proved to be a rich source of indole alkaloids. ’ The tribe is the sole plant source of the iboga type alkaloids (with one exception’), the related voacamine group of dimeric alkaloids and the vobtusine group of dimeric alkaloids; it is also an important source of the 2-acylindole class and has afforded miscellaneousother types of indole alkaloids.1*3r4 The second largest of the 20 genera in the tribe is Eruatamia’ but rela- tively few of the 92-95 species in the genus have been examined for alkaloids. Iboga- type alkaloids have been obtained from E. dichotoma (coronaridine,6 heyneanine,’ voacristine hydroxyindolenine’), E. coronaria (coronaridine, voacangine’) and E. pandacaqui (coronaridine”), 2-acylindoles from E. coronaria (dregamine, tabernae- montanine’), E. divaricata (tabernaemontanine”) and E. pandacaqui (tabernae- montanine”) and aspidospermine types from E. dichotoma (tabersonine”) and E. dioaricafa (lochnericine, voaphylline”). E. pandacaqui has also afforded 20-epilochneridine and three dimeric alkaloids (ervafoline, ervafolidine, isoerva- r Hegnauer, R., ‘Chemotaxonomie der Pflanzen’ Vol. -
Regulation of Alkaloid Biosynthesis in Plants
CONTRIBUTORS Numbers in parentheses indicate the pages on which the authors’ contributions begin. JAUME BASTIDA (87), Departament de Productes Naturals, Facultat de Farma` cia, Universitat de Barcelona, 08028 Barcelona, Spain YEUN-MUN CHOO (181), Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia PETER J. FACCHINI (1), Department of Biological Sciences, University of Calgary, Calgary, AB, Canada TOH-SEOK KAM (181), Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia RODOLFO LAVILLA (87), Parc Cientı´fic de Barcelona, Universitat de Barcelona, 08028 Barcelona, Spain DANIEL G. PANACCIONE (45), Division of Plant and Soil Sciences, West Virginia University, Morgantown, WV 26506-6108, USA CHRISTOPHER L. SCHARDL (45), Department of Plant Pathology, University of Kentucky, Lexington, KY 40546-0312, USA PAUL TUDZYNSKI (45), Institut fu¨r Botanik, Westfa¨lische Wilhelms Universita¨tMu¨nster, Mu¨nster D-48149, Germany FRANCESC VILADOMAT (87), Departament de Productes Naturals, Facultat de Farma` cia, Universitat de Barcelona, 08028 Barcelona, Spain vii PREFACE This volume of The Alkaloids: Chemistry and Biology is comprised of four very different chapters; a reflection of the diverse facets that comprise the study of alkaloids today. As awareness of the global need for natural products which can be made available as drugs on a sustainable basis increases, so it has become increas- ingly important that there is a full understanding of how key metabolic pathways can be optimized. At the same time, it remains important to find new biologically active alkaloids and to elucidate the mechanisms of action of those that do show potentially useful or novel biological effects. Facchini, in Chapter 1, reviews the significant studies that have been conducted with respect to how the formation of alkaloids in their various diverse sources are regulated at the molecular level. -
Fifty Years of Alkaloid Biosynthesis in Phytochemistry Q ⇑ Geoffrey A
Phytochemistry 91 (2013) 29–51 Contents lists available at SciVerse ScienceDirect Phytochemistry journal homepage: www.elsevier.com/locate/phytochem Review Fifty years of alkaloid biosynthesis in Phytochemistry q ⇑ Geoffrey A. Cordell Natural Products Inc., Evanston, IL, USA Department of Pharmaceutics, College of Pharmacy, University of Florida, Gainesville, FL 32610, USA article info abstract Article history: An overview is presented of the studies related to the biosynthesis of alkaloids published in Phytochem- Available online 20 June 2012 istry in the past 50 years. Ó 2012 Elsevier Ltd. All rights reserved. Keywords: Alkaloids Biosynthesis Overview Contents 1. Introduction . ....................................................................................................... 30 1.1. Ornithine-derived alkaloids . .......................................................................... 30 1.2. Nicotine . .......................................................................................... 31 1.3. Tropane alkaloids . .......................................................................................... 33 1.4. Calystegines . .......................................................................................... 34 1.5. Pyrrolizidine alkaloids. .......................................................................................... 34 1.6. Retronecine . .......................................................................................... 34 1.7. Lysine-derived alkaloids . ......................................................................................... -
Studies Related to the Synthesis of Bisindole
c ( STUDIES RELATED TO THE SYNTHESIS OF BISINDOLE ALKALOIDS OF THE INDOLE-INDOLINE TYPE BY ADI MINOO TREASURYWALA B.Sc. Honours, University of Toronto, 1970 A THESIS SUBMITTED IN PARTIAL FULFILMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY in the Department of Chemistry We accept this thesis as conforming to the required standard THE UNIVERSITY OF BRITISH COLUMBIA December, 1973 In presenting this thesis in partial fulfilment of the requirements for an advanced degree at the University of British Columbia, I agree that the Library shall make it freely available for reference and study. I further agree that permission for extensive copying of this thesis for scholarly purposes may be granted by the Head of my Department or by his representatives. It is understood that copying or publication of this thesis for financial gain shall not be allowed without my written permission. Depa rtment The University of British Columbia Vancouver 8, Canada Date - ii - ABSTRACT The first part of this thesis describes the synthesis of 3,4~ functionalized cleavamine templates bearing a C. „- carbomethoxy group. Io Thus hydroboration of 188-carbomethoxycleavamine (29) produced two epimeric alcohols; 18a- and 183-carbomethoxydihydrocleavamin -3 -ol (56 and 57). These compounds could be interconverted by using boron trifluoride etherate in benzene. One of these compounds (56) could be oxidized to the corresponding C^ ketone which is a key intermediate for future work. The second part describes the research in the area of the so-called dimerization reaction. The generality of a procedure which had been used before was tested. When the chloroindolenine of 4(3-dihydrocleavamine and 18-carbomethoxy-43-dihydrocleavamine were each treated with vindoline in 1.5% methanolic hydrogen chloride,good yields of dimeric i products were obtained. -
Dr. Duke's Phytochemical and Ethnobotanical Databases List of Chemicals for Varicose Veins
Dr. Duke's Phytochemical and Ethnobotanical Databases List of Chemicals for Varicose Veins Chemical Activity Count (+)-ALLOMATRINE 1 (+)-ALPHA-VINIFERIN 1 (+)-CATECHIN 7 (+)-EUDESMA-4(14),7(11)-DIENE-3-ONE 1 (+)-GALLOCATECHIN 2 (+)-HERNANDEZINE 1 (+)-ISOCORYDINE 1 (+)-PRAERUPTORUM-A 1 (+)-PSEUDOEPHEDRINE 1 (+)-SYRINGARESINOL 1 (-)-16,17-DIHYDROXY-16BETA-KAURAN-19-OIC 1 (-)-ACETOXYCOLLININ 1 (-)-ALPHA-BISABOLOL 2 (-)-ARGEMONINE 1 (-)-BETONICINE 1 (-)-BISPARTHENOLIDINE 1 (-)-BORNYL-CAFFEATE 2 (-)-BORNYL-FERULATE 2 (-)-BORNYL-P-COUMARATE 2 (-)-DICENTRINE 1 (-)-EPIAFZELECHIN 1 (-)-EPICATECHIN 3 (-)-EPICATECHIN-3-O-GALLATE 1 (-)-EPIGALLOCATECHIN 1 (-)-EPIGALLOCATECHIN-3-O-GALLATE 2 (-)-EPIGALLOCATECHIN-GALLATE 3 (-)-HYDROXYJASMONIC-ACID 1 Chemical Activity Count (-)-N-(1'-DEOXY-1'-D-FRUCTOPYRANOSYL)-S-ALLYL-L-CYSTEINE-SULFOXIDE 1 (1'S)-1'-ACETOXYCHAVICOL-ACETATE 2 (15:1)-CARDANOL 1 (2R)-(12Z,15Z)-2-HYDROXY-4-OXOHENEICOSA-12,15-DIEN-1-YL-ACETATE 1 (7R,10R)-CAROTA-1,4-DIENALDEHYDE 1 (E)-4-(3',4'-DIMETHOXYPHENYL)-BUT-3-EN-OL 2 1,2,6-TRI-O-GALLOYL-BETA-D-GLUCOSE 1 1,7-BIS(3,4-DIHYDROXYPHENYL)HEPTA-4E,6E-DIEN-3-ONE 1 1,7-BIS(4-HYDROXY-3-METHOXYPHENYL)-1,6-HEPTADIEN-3,5-DIONE 1 1,7-BIS-(4-HYDROXYPHENYL)-1,4,6-HEPTATRIEN-3-ONE 1 1,8-CINEOLE 3 1-(METHYLSULFINYL)-PROPYL-METHYL-DISULFIDE 1 1-O-(2,3,4-TRIHYDROXY-3-METHYL)-BUTYL-6-O-FERULOYL-BETA-D-GLUCOPYRANOSIDE 1 10-ACETOXY-8-HYDROXY-9-ISOBUTYLOXY-6-METHOXYTHYMOL 2 10-DEHYDROGINGERDIONE 1 10-GINGERDIONE 1 11-HYDROXY-DELTA-8-THC 1 11-HYDROXY-DELTA-9-THC 1 12,118-BINARINGIN 1 12-ACETYLDEHYDROLUCICULINE -
Synthesis of Bisindole Alkaloids from the Apocynaceae Which Contain a Macroline Or Sarpagine Unit: a Review
molecules Review Synthesis of Bisindole Alkaloids from the Apocynaceae Which Contain a Macroline or Sarpagine Unit: A Review Md Toufiqur Rahman, Veera V. N. Phani Babu Tiruveedhula and James M. Cook * Department of Chemistry and Biochemistry, University of Wisconsin-Milwaukee, 3210 N. Cramer Street, Milwaukee, WI 53201, USA; [email protected] (M.T.R.); [email protected] (V.V.N.P.B.T.) * Correspondence: [email protected]; Tel.: +1-414-229-5856; Fax: +1-414-229-5530 Academic Editor: Michael Wink Received: 29 September 2016; Accepted: 4 November 2016; Published: 14 November 2016 Abstract: Bisindole natural products consist of two monomeric indole alkaloid units as their obligate constituents. Bisindoles are more potent with respect to their biological activity than their corresponding monomeric units. In addition, the synthesis of bisindoles are far more challenging than the synthesis of monomeric indole alkaloids. Herein is reviewed the enantiospecific total and partial synthesis of bisindole alkaloids isolated primarily from the Alstonia genus of the Apocynaceae family. The monomeric units belong to the sarpagine, ajmaline, macroline, vobasine, and pleiocarpamine series. An up-to-date discussion of their isolation, characterization, biological activity as well as approaches to their partial and total synthesis by means of both synthetic and biosynthetic strategies are presented. Keywords: Alstonia genus; Apocynaceae family; sarpagine; macroline; ajmaline; bisindole alkaloids; biomimetic synthesis; partial and total synthesis; enantiospecific and regiospecific synthesis of alkaloids; bioactive indole alkaloids 1. Introduction Indole alkaloids are of extraordinary significance due to their structural diversity, medicinal properties and are an essential part of the drug discovery process (see the Merck Index for details) [1].