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  • Title: [n-Butyl Alcohol-soluble Chemical Constituents of Psidium guajava Leaves].
    Author: Chen G, Wan KH, Fu HZ, Yan QW.
    Journal: Zhong Yao Cai; 2015 Mar; 38(3):521-3. PubMed ID: 26495653.
    Abstract:
    OBJECTIVE: To study the chemical constituents of the leaves of Psidium guajava. METHODS: The chemical constituents were isolated by column chromatography on silica gel, Sephadex LH-20 and MPLC. Their chemical structures were elucidated on the basis of special analysis. RESULTS: Seven compounds were isolated from n-butyl alcohol fraction, whose structures were elucidated as morin-3-O-α-L-arabopyranoside (1), morin-3-O-α-L-iyxopyranoside (2), 2,6-dihydroxy-4-O-β-D-glucopyranosyl-benzophenone (3), casuarictin (4),2,6-dihydroxy-3,5-dimethyl-4-O-(6"-O-galloyl-β-D-glucopyranosyl)-benzophenone(5), globulusin A(6), and kaempferol-3-O-β-D-(6"-galloyl) galactopyranoside (7). CONCLUSION: Compounds 3 and 5 ~ 7 are isolated from this plant for the first time.
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