Chemical constituents from the leaves of Psidium guajava

Sabira Begum, Syed Imran Hassan, Syed Nawazish Ali, Bina S. Siddiqui

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

Five constituents including one new pentacyclic triterpenoid guajanoic acid (1) and four known compounds β-sitosterol (2), uvaol (3), oleanolic acid (4), and ursolic acid (5) have been isolated from the leaves of Psidium guajava. The new constituent 1 has been characterized as 3β-p-E-coumaroyloxy-2α-methoxyurs-12-en-28-oic acid through 2D NMR techniques and chemical transformations. This is the first report of isolation of compound 3 from the genus Psidium.

Original languageEnglish
Pages (from-to)135-140
Number of pages6
JournalNatural Product Research
Volume18
Issue number2
DOIs
Publication statusPublished - Apr 2004

Fingerprint

Psidium
Psidium guajava
Oleanolic Acid
ursolic acid
oleanolic acid
Acids
sitosterols
acids
triterpenoids
leaves
Nuclear magnetic resonance
methodology
gamma-sitosterol
uvaol

Keywords

  • Guajanoic acid
  • Leaves
  • Myrtaceae
  • Psidium guajava
  • Triterpenoids

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Plant Science
  • Organic Chemistry

Cite this

Chemical constituents from the leaves of Psidium guajava. / Begum, Sabira; Hassan, Syed Imran; Ali, Syed Nawazish; Siddiqui, Bina S.

In: Natural Product Research, Vol. 18, No. 2, 04.2004, p. 135-140.

Research output: Contribution to journalArticle

Begum, Sabira ; Hassan, Syed Imran ; Ali, Syed Nawazish ; Siddiqui, Bina S. / Chemical constituents from the leaves of Psidium guajava. In: Natural Product Research. 2004 ; Vol. 18, No. 2. pp. 135-140.
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