Chemical constituents from the leaves of Psidium guajava

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

doi:10.1080/14786410310001608019

Chemical constituents from the leaves of Psidium guajava

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

96 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 language	English
Pages (from-to)	135-140
Number of pages	6
Journal	Natural Product Research
Volume	18
Issue number	2
DOIs	https://doi.org/10.1080/14786410310001608019
Publication status	Published - Apr 2004
Externally published	Yes

Keywords

Guajanoic acid
Leaves
Myrtaceae
Psidium guajava
Triterpenoids

ASJC Scopus subject areas

Analytical Chemistry
Biochemistry
Plant Science
Organic Chemistry

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10.1080/14786410310001608019

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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.",

keywords = "Guajanoic acid, Leaves, Myrtaceae, Psidium guajava, Triterpenoids",

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AU - Begum, Sabira

AU - Hassan, Syed Imran

AU - Ali, Syed Nawazish

AU - Siddiqui, Bina S.

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Y1 - 2004/4

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AB - 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.

KW - Guajanoic acid

KW - Leaves

KW - Myrtaceae

KW - Psidium guajava

KW - Triterpenoids

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Chemical constituents from the leaves of Psidium guajava

Abstract

Keywords

ASJC Scopus subject areas

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