Chemical constituents from the leaves of Psidium guajava

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

Research output: Contribution to journalArticle

72 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

Keywords

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

ASJC Scopus subject areas

  • Analytical Chemistry
  • Biochemistry
  • Plant Science
  • Organic Chemistry

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