Download PDF
Planta Med 2002; 68(7): 664-666
DOI: 10.1055/s-2002-32895
Letter
© Georg Thieme Verlag Stuttgart · New York

Three Pyrone Glucosidic Derivatives from Conyza albida

Ahmed A. Ahmed1 , Abou El-Hamd H. Mohamed2, 5 , Olga Tzakou3 , Anastasia Gani3 , Artemios Yannitsaros4 , Mohamed A. El-Maghraby2 , Mohamed E. Hassan2 , Klaus-Peter Zeller5
  • 1Department of Chemistry, Faculty of Science, El-Minia University, El-Minia, Egypt
  • 2Department of Chemistry, Aswan-Faculty of Science, South Valley University, Aswan, Egypt
  • 3Department of Pharmacognosy, School of Pharmacy, University of Athens, Panepistimiopolis, Zografou, Greece
  • 4Institute of Systematic Botany, Department of Biology, University of Athens, Greece
  • 5Institut für Organische Chemie, Universität, Tübingen, Germany
Further Information

Publication History

Received: October 26, 2001

Accepted: February 3, 2002

Publication Date:
22 July 2002 (online)

Also available at
    Permissions and Reprints

Abstract

Three new pyrone glucosidic derivatives, together with the known pyromeconic acid glucoside, three acytelenes and two eudesmanes, were obtained from the aerial parts of Conyza albida. The structures were elucidated by high field NMR spectroscopy.

References

  • 1 Zdero C, Ahmed A A, Bohlmann F, Mungai G M. Diterpenes and sesquiterpene xylosides from east African Conyza species.  Phytochemistry. 1990;  29 3167-72
    CrossrefPubMedSearch in Google Scholar
  • 2 Ahmed A A. A diterpene xyloside from Conyza steudellii .  Phytochemistry. 1991;  30 611-2
    CrossrefPubMedSearch in Google Scholar
  • 3 Ahmad M, Ahmed A A. Terpenoids from Conyza structa .  Phytochemistry. 1990;  29 2715-6
    CrossrefPubMedSearch in Google Scholar
  • 4 Ahmed A A, Hussein N S, Mark S, Mabry T J. Terpenoids from Conyza linifolia .  Asian J. of Chemistry. 1995;  7 433-6
    PubMedSearch in Google Scholar
  • 5 Ahmad M, Ahmed A A. A new glucoside from Conyza linifolia .  Pharmazie. 1990;  45 224-5
    PubMedSearch in Google Scholar
  • 6 Pacciaroni A V, Mongelli E, Espinar L A, Romano A, Ciccia G, Silva G L. Bioactive constituents from Conyza albida .  Planta Medica. 2000;  66 720-3
    Thieme ConnectPubMedSearch in Google Scholar
  • 7 Pacciaroni A V, Espinar L A, Mongelli E, Romano A, Ciccia G, Silva G L. Bioactive constituents of Conyza albida .  Molecules. 2000;  5 571-3
    PubMedSearch in Google Scholar
  • 8 Liping X, Dean G, Jianshen L, Junhua Z, Kazuo K, Zhonghua J, Tamotus N. A new trans-clerodane diterpene lactone from Conyza blinii .  Heterocycles. 1999;  51 605-9
    PubMedSearch in Google Scholar
  • 9 Galal A M, Abdel-Satar E, El-Feraly F S, Mossa  J S, Meselhy M R, Shigetoshi K, Tsuneo N. Diterpene acids from Conyza incana .  Phytochemistry. 1998;  48 159-63
    CrossrefPubMedSearch in Google Scholar
  • 10 Metwally M A, Dawidar A. Constituents of Conyza linifolia .  Pharmazie. 1987;  42 355-5
    PubMedSearch in Google Scholar
  • 11 Bohlmann F, Jakupovic J. 8-Oxo-α-selinen and new scopoletin derivative from Conyza species.  Phytochemistry. 1979;  18 1367-70
    CrossrefPubMedSearch in Google Scholar
  • 12 Hashidoko Y. Pyromeconic acid and its glucosidic derivatives from leaves of Erigeron annuus, and the siderophile activity of pyromeconic acid. Biosci. Biotech.  Biochem.. 1995;  59 886-90
    PubMedSearch in Google Scholar
  • 13 Bohlmann F, Zdero C. A new kumulen from Erigeron canadense .  Tetrahedron Letters. 1970;  28 2465-6
    PubMedSearch in Google Scholar
  • 14 Sanz J F, Marco J A. Ein neues Butenolid aus Conyza bonariensis . Liebigs Annalen Chemie 1991: 399-400
    Search in Google Scholar
  • 15 Ahmed A A, Spring O, Abde El-Razek M H, Hussein N S, Mabry T J. Sesquiterpene lactones and other constituents from Hymenoxys richardsonii and H. subinteagra .  Phytochemistry. 1995;  39 1127-31
    CrossrefPubMedSearch in Google Scholar
  • 16 Itokawa H, Matsumoto H, Mihashi S. Isolation of oppositane- and cycloeudesmane-type sesquiterpenoids from Torilis japonica . Chemistry Letters 1983: 1253-6
    Search in Google Scholar

Prof. Dr. Ahmed A. Ahmed

Department of Chemistry

Faculty of Science

El-Minia University

El-Minia 61519

Egypt

Email: abdellaahmed@yahoo.com

Fax: +2086-342601