[n-Butyl Alcohol-soluble Chemical Constituents of Psidium guajava Leaves].
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).


CONCLUSIONS
Compounds 3 and 5 ~ 7 are isolated from this plant for the first time.
Gang
G
Chen
Kai-hua
KH
Wan
Hui-zheng
HZ
Fu
Qing-wei
QW
Yan
D001577:Benzophenones; D001713:Biphenyl Compounds; D005419:Flavonoids; D005707:Gallic Acid / Q000031:analogs & derivatives; D044949:Kaempferols; D064209:Phytochemicals / Q000737:chemistry* / Q000302:isolation & purification; D018515:Plant Leaves / Q000737:chemistry*; D031647:Psidium / Q000737:chemistry*; D047309:Flavones
D001577:Benzophenones; D001713:Biphenyl Compounds; D005419:Flavonoids; D005707:Gallic Acid; D044949:Kaempferols; D064209:Phytochemicals; C047723:benzophenone; C006552:kaempferol; C073064:casuarictin; C008548:morin; D047309:Flavones; C005290:oxybenzone