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  • Title: [Studies on chemical constituents of leaves of Psidium guajava].
    Author: Fu H, Luo Y, Zhang D.
    Journal: Zhongguo Zhong Yao Za Zhi; 2009 Mar; 34(5):577-9. PubMed ID: 19526787.
    Abstract:
    OBJECTIVE: To study the chemical constituents of the leaves of Psidium guajava. METHOD: The 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. RESULT: Nine 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). CONCLUSION: Compounds 3, 7-9 were isolated from this plant for the first time.
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