cytellin and acacetin

To study the chemical constituents from the leaves of "Chuju" Chrysanthemum morifolium.. All compounds were separated and purified by column chromatography over silica gel, Sephadex LH-20 and preparative HPLC. Their structures were identified by spectral methods including 1H-NMR and 13C-NMR.. 21 compounds were isolated and identified as octa-cosyl alcohol (1), β-sitosterol (2), lupeol (3), α-amyrin (4), daucosterol (5), ineupatorolide B (6), syringin (7), chlorogenic acid (8), petasiphenol (9), physcion (10), acacetin (11), eupatilin (12), quercetin (13), diosmetin (14), luteolin (15), apigenin (16), apigenin- 7-O-β-D-glucopyranoside (17), quercetin-3-O-β-D-glucopyranoside (18), luteolin-7-O-β-D-gluco pyranoside (19), apigenin-7-O-β-D- neospheroside (20), and acacetin-7-O-β-D-glucoside (21).. Compounds 1-12, 18 and 20 are isolated from this plant for the first time. Compounds 10, 13, 14, 15 and 16 have shown strong antioxidant activities by DPPH · scavenging activity better than Vit C.

Topics: Antioxidants; Apigenin; Chlorogenic Acid; Chrysanthemum; Flavones; Flavonoids; Glucosides; Luteolin; Phenylpropionates; Phytochemicals; Plant Leaves; Plants, Medicinal; Quercetin; Sitosterols

To study the chemical components from the leaves of Fatsia japonica and their antitumor activities in vitro.. All compounds were separated and purified by column chromatography over silica gel, Sephadex LH-20 and preparative HPLC. Their structures were identified by physical and chemical properties and spectral methods including 1H-NMR and 13C-NMR. Antitumor assay was measured by MTT method.. 18 compounds were isolated and identified as palmitic acid (1), β-hydroxypropiovanillone (2), adenosine (3), β-sitosterol (4), daucosterol (5), oleanolic acid (6), echinocystic acid (7), betulinic acid (8), hederagenin(9), hederagenin-3-O-α-L-rhamnopyranosyl(1-->2)-α-L-arabinopyranoside(10), acacetin(11), quercetin(12), quercetin-3-O-β-D-glucopyranoside(13), isovitexin(14), isovitexin-7-O-glucoside(15), astragalin(16), methylpluviatolide(17), and syringaresinol-4-O-β-D-glucopyranoside(18).. All compounds are isolated from the leaves of Fatsia japonica for the first time except compound 1. The ethyl acetate extract and compounds 6, 10, 12 and 18 at the concentration of 0. 5 mg/mL showed inhibitory effect against the proliferation of colon cell line A549 with the inhibitory rate over 90% in vitro.

Topics: Antineoplastic Agents, Phytogenic; Araliaceae; Betulinic Acid; Cell Line, Tumor; Chromatography, High Pressure Liquid; Flavones; Furans; Glucosides; Humans; Kaempferols; Lactones; Lignans; Oleanolic Acid; Pentacyclic Triterpenes; Phytochemicals; Plant Leaves; Sitosterols; Triterpenes

To study the chemical constituents of Ajuga nipponensis.. The chemical constituents were isolated by repeated silica gel column chromatography and their structures were elucidated by phyisochemical properties and spectral analysis.. Ten compounds were isolated and identified as:hexadecanoic acid(1), ajuforrestin A(2), beta-sitosterol(3), acacetin(4), apigenin(5), ajugamacrin B(6), ursolic acid(7), beta-ecdysone(8), 8-acetylharpagide(9) and daucosterol(10).. Compounds 1-7 and 10 are isolated from this plant for the first time.

Topics: Ajuga; Apigenin; Flavones; Molecular Structure; Palmitic Acid; Plants, Medicinal; Sitosterols; Spectrophotometry, Ultraviolet

To study the chemical constituents from Elsholtza bodinieri Vaniot.. The chemical constituents were isolated and repeatedly purified on silica gel column and the structures were elucidated by the NMR spectra and physico-chemical properties.. Seven compounds were obtained and they are identified as 5,7-dihydroxyflavone, 5,7,3',4-tetrahydroxyflavone, 5,3',4'-trihydroxy-7-O-beta-D-glucoside, acacetin, oleanolic acid, beta-sitosterol, daucosterol.. All the compounds were obtained from Elsholtzia bodinieri Vaniot for the first time.

Topics: Chromatography, Thin Layer; Flavones; Flavonoids; Lamiaceae; Oleanolic Acid; Plants, Medicinal; Sitosterols; Spectrophotometry, Ultraviolet