cytellin and chrysoeriol

To study on the chemical constituents of Lobelia chinensis.. The coloumn chromatographic techniques were applied to isolate constituents, and their structures were elucidated by means of spectral data analysis.. Sixteen compounds were isolated and identified as daucosterol (1), diosmetin (2), apigenin (3), chrysoeriol (4), loteolin (5), hesperidin (6), loteolin-7-O-beta-D-glucoside (7), apigenin-7-O-beta-D-glucoside (8), linarin (9), diosmin(10), 5,7-dimethoxy-8- hydroxycoumarin (11), palmitinic acid (12), lacceroic acid (13), stearic acid (14), beta-sitosterol (15), daucosterol (16).. All of these compouds were obtained from L. chinensis for the first time.

Topics: Apigenin; Cholestenones; Flavones; Flavonoids; Glycosides; Hesperidin; Lobelia; Plant Extracts; Sitosterols

To investigate the chemical constituents from the leaves of Vaccinium bracteatum.. Many column chromatographic techniques were used for the isolation and separation of chemical constituents. Their structures were elucidated on the basis of spectral analysis and chemical evidences.. Twelve compounds were isolated from the plant, and they were identified as chrysoeriol (1), scopoletin (2), trans-p-hydroxycinnamic acid (3), trans-p-hydroxycinnamic acid ethyl ester (4), cafeic acid ethyl ester (5), beta-sitosterol (6), iuteolin (7), quercetin (8), esculetin (9), cafeic acid (10), isolariciresinol-9-O-beta-D-xyloside (11), 10-O-trans-p-coumaroylsandoside (12).. Compounds 4, 5, 11, 12 were isolated from the genus Vaccinium for the first time, and compounds 1, 2, 9, 10 were isolated from this plant for the first time.

Topics: Coumaric Acids; Flavones; Flavonoids; Furans; Glycosides; Lignin; Molecular Structure; Plant Leaves; Scopoletin; Sitosterols; Umbelliferones; Vaccinium