Studies on chemical constituents of leaves of Psidium guajava.

Author: Huizheng FU ¹ ; Yongming LUO ; Dongming ZHANG
Author Information

1. Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine (Ministry of Education), Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China.
Publication Type:Journal Article
MeSH: Plant Extracts; chemistry; Plant Leaves; chemistry; Psidium; chemistry
From: China Journal of Chinese Materia Medica 2009;34(5):577-579
CountryChina
Language:Chinese
Abstract:
OBJECTIVETo study the chemical constituents of the leaves of Psidium guajava.
METHODThe chemical constituents were isolated by column chromatography on silica gel, Sephadex LH-20 and MPLC. Their structures were elucidated on the basis of spectral analysis.
RESULTNine compounds were isolated from this plant, and the structure of them were identified as ursolic acid (1), 2alpha-hydroxyursolic acid (2), 2alpha-hydroxyoleanolic acid (3), morin-3-O-alpha-L-arabopyranoside (4), quercetin (5), hyperin (6), myricetin-3-O-beta-D-glucoside (7), quercetin-3-O-beta-D-glucuronopyranoside (8), 1-O-galloyl-beta-D-glucose (9).
CONCLUSIONCompounds 3, 7-9 were isolated from this plant for the first time.