quercetin-3-o-alpha-l-rhamnopyranoside and aromadedrin

To study the chemical constituents of Glycosmis pentaphylla.. 95% ethanolic extract of Glycosmis pentaphylla was fractioned and separated extensively by silica gel, Sephadex LH-20 chromatography,their structures were elucidated by means of spectral data analysis.. All compounds were isolated and identified as 5,7,4’-trihydroxydihydroflavonol( 1),aromadendrin( 2),trans-dihydroquercetin( 3),cis-dihydroquercetin( 4),kaempferol( 5),quercetin( 6),5,7,4’-trihydroxyflavonol-3-O-α-L-rhamnopyranoside( 7),quercetin-3-O-α-L-arabinofuranoside( 8),quercetin-3-O-α-L-rhamnopyranoside( 9),5,7,3’,4’-tetrahydroxyflavonone-3-O-rhamnopyranoside( 1→6) glucopyranoside( 10) and 5,7,3’-trihydroxy-4’-methyl ether-flavonone-3-O-rhamnopyranoside( 1→6) glucopyranoside( 11).. All compounds are isolated from this plant for the first time.

Topics: Arabinose; Drugs, Chinese Herbal; Flavonoids; Glycosides; Kaempferols; Quercetin; Rhamnose; Rutaceae