Triterpenoid constituents in fruits of Psidum guajava.
- Author:
Jicheng SHU
1
;
Guixin CHOU
;
Zhengtao WANG
Author Information
1. Key Laboratory of Standardization of Chinese Medicines, Shanghai R&D Center for standardization of Chinese Medicines, Ministry of Education, Institute of Chinese Materia Medica of Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
- Publication Type:Journal Article
- MeSH:
Fruit;
chemistry;
Plant Extracts;
analysis;
Psidium;
chemistry;
Triterpenes;
analysis
- From:
China Journal of Chinese Materia Medica
2009;34(23):3047-3050
- CountryChina
- Language:Chinese
-
Abstract:
The chemical constituents from the fruit of Psidium guajava were investigated. Nine triterpenoids, ursolic acid (1), 1beta, 3beta-dihydroxyurs-12-en-28-oic acid (2), 2alpha,3beta-dihydroxyurs-12-en-28-oic acid (3), 3beta,19alpha-dihydroxyurs-12en-28-oic acid (4), 19a-hydroxylurs-12-en-28-oic acid-3-O-alpha-L-arabinopyranoside (5), 3beta, 23-dihydroxy urs-12-en-28-oic acid (6), 3beta, 19alpha, 23beta-tri-hydroxylurs-12-en-28-oic acid (7), 2alpha, 3beta,19alpha, 23beta-tetrahydroxyurs-12-en-28-oic acid (8), 3alpha,19alpha,23,24-tetrahydroxyurs -12-en-28-oic acid (9) were isolated by means of chromatography, and their structures were elucidated on the basis of MS, H NMR, 13C-NMR spectra. Compounds 2, 5-9 were isolated from this plant for the first time.
