Benzofuranylethanoid and phenylethanoid esters from Pteropyrum scoparium (Jaub. & Spach)

Zamzam Y.S. Al-I'shaqi, Majekodunmi O. Fatope, Maymoona S.M. Al-Badi, Ruwaya I. Al-Shueili, Badria Al-Habsi, John Husband

Research output: Contribution to journalArticle

Abstract

Pteropyrum scoparium Jaub. & Spach (Polygonaceae) is a naturally growing shrub used as food crop in Oman. The chemical investigation of the ethyl acetate extracts of the leaf afforded phenylethanoid, benzofuranylethanoid and ethyl esters of caproic and lauric acids (1–3), proanthocyanidin trimer epicatechin-3-O-gallate-(4 → 8)-epicatechin-3-O-gallate-(4 → 8)-epicatechin-3-O-gallate (4) and epicatechin-3-O-gallate (5). Compounds 1 and 3 are new and isolated for the first time from P. scoparium. The structures of compounds were assigned based on 1D and 2D NMR spectroscopy and ESI–MS analysis. Compounds 1 and 3 were tested for free radical scavenging anti-oxidant properties and found to inhibit 2,2′-diphenyl-1-picrylhydrazyl radical (DPPH[rad]) by 1.7% and 41.0%, respectively compared to 71% and 78% for gallic acid and butylated hydroxyanisole used as control.

Original languageEnglish
Pages (from-to)186-190
Number of pages5
JournalPhytochemistry Letters
Volume20
DOIs
Publication statusPublished - Jun 1 2017

Fingerprint

epicatechin
Esters
esters
Caproates
Polygonaceae
Lauric Acids
Oman
Butylated Hydroxyanisole
butylated hydroxyanisole
hexanoic acid
Gallic Acid
dodecanoic acid
Scavenging
food crops
gallic acid
proanthocyanidins
Oxidants
oxidants
leaf extracts
Nuclear magnetic resonance spectroscopy

Keywords

  • Benzofuranylethanoid caproate
  • Phenylethanoid laurate
  • Proanthocyanidin
  • Pteropyrum scoparium

ASJC Scopus subject areas

  • Biotechnology
  • Biochemistry
  • Agronomy and Crop Science
  • Plant Science

Cite this

Benzofuranylethanoid and phenylethanoid esters from Pteropyrum scoparium (Jaub. & Spach). / Al-I'shaqi, Zamzam Y.S.; Fatope, Majekodunmi O.; Al-Badi, Maymoona S.M.; Al-Shueili, Ruwaya I.; Al-Habsi, Badria; Husband, John.

In: Phytochemistry Letters, Vol. 20, 01.06.2017, p. 186-190.

Research output: Contribution to journalArticle

Al-I'shaqi, Zamzam Y.S. ; Fatope, Majekodunmi O. ; Al-Badi, Maymoona S.M. ; Al-Shueili, Ruwaya I. ; Al-Habsi, Badria ; Husband, John. / Benzofuranylethanoid and phenylethanoid esters from Pteropyrum scoparium (Jaub. & Spach). In: Phytochemistry Letters. 2017 ; Vol. 20. pp. 186-190.
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