cytellin and maslinic-acid

To study the chemical constituents from the fleshy stems of Cynomorium songaricum.. The chemical constituents were isolated and purified by chromatography on MCI, silica gel, Sephadex LH-20 columns, etc. The structures of compounds were elucidated by physicochemical property and spectral analyses.. 15 compounds were isolated and identified as choerospondin( 1), isolariciresinol-4-O-β-D-glucopyranoside( 2), lutelin-7-O-β-D-glucopyranoside( 3), 3, 4-dihydroxyphenethylacetate( 4),maslinic acid( 5),catechin ( 6),ursolic acid( 7),gentisic acid( 8),mannitol( 9), phloroglucinol( 10), β-sitosterol( 11), daucosterol( 12), rutin( 13), cetylic acid( 14) and epicatechin( 15).. Compounds 4,5,8,9 and 10 are obtained from this plant for the first time.

Topics: Catechin; Cynomorium; Lignin; Naphthols; Phloroglucinol; Sitosterols; Triterpenes; Ursolic Acid

To study the chemical constituents from Macaranga denticulata Root.. The chemical constituents were isolated and purified by silica-gel column chromatography and recrystallization, and their structures were identified by physicochemical properties and spectral data.. Nine compounds were isolated and identified as: gheddic acid (1), aleuritolic acid-3-acetate (2), β-sitosterol (3), stigmast-4-en-6β-ol-3 -one (4), 2α-hydroxyaleuritolic acid 3-p-hydroxybenzoate (5), scopoletin (6), daucosterol (7), 2, 6-dimethoxy-1,4-benzoquinone (8) and maslinic acid(9).. Compounds 1-9 are obtained from this plant for the first time.

Topics: Benzoquinones; Euphorbiaceae; Parabens; Phytochemicals; Plant Roots; Plants, Medicinal; Scopoletin; Sitosterols; Stigmasterol; Triterpenes

To study the chemical constituents of the Ficus microcarpa.. Isolation and identification were carried out by using various chromatography techniques and spectral methods.. Eight compounds were isolated. Their structures were identified as beta-amyrone (I), lupeol (II), lupeol acetate (III), maslinic acid (IV), epifriedelinol (V), stearic acid (VI), beta-sitosterol (VI), daucosterol (VI).. Compounds I, II, VI are isolated from this plant for the first time.

Topics: Ficus; Magnetic Resonance Spectroscopy; Molecular Structure; Pentacyclic Triterpenes; Plant Leaves; Sitosterols; Stearic Acids; Triterpenes

To investigate the chemical constituents of root of Rubus biflorus.. Isolation and purification were carried out by silica gel column chromatography and recrystallization and so on. Structural determination of the pure compounds was based on physico-chemical properties and various spectral data analysis (1H-NMR, 13C-NMR, IR, EI-MS).. Five compounds were isolated and identified as follows: lupeol acetate (I), corosolic acid (II), oleanic acid (III), 2alpha-hydroxyoleanolic acid (IV), sitosterol (V).. All these compounds are isolated from this plant for the first time.

Topics: Magnetic Resonance Spectroscopy; Molecular Structure; Oleanolic Acid; Plant Roots; Plants, Medicinal; Rosaceae; Sitosterols; Steroids; Triterpenes

To study the chemical constituents from the root of Actinidia chinensis.. The roots of A. chinensis were extracted with 95% EtOH. The EtOH extract was suspended in H2O and extracted with petroleum ether, EtOAc and BuOH successively. The compounds were isolated with column chromatography from the EtOAc fraction, and elucidated on the basis of spectral analysis(MS, IR, 1H-NMR, 13C-NMR).. Seven compounds were isolated from the root of A. chinensis, and the structures were identified as 2alpha-hydroxyoleanolic acid (1), 2alpha-hydroxyursolic acid (2), euscaphic acid (3), 23-hydroxyursolic acid (4), 3beta-O-acetylursolic acid (5), ergosta4, 6, 8, (14), 22-tetraen-3-one (6), beta-steriol (7).. All the compounds were obtained from the root of A. chinensis for the first time.

Topics: Actinidia; Oleanolic Acid; Plant Roots; Plants, Medicinal; Sitosterols; Triterpenes

Five compounds (I - V) were isolated from Potentilla chinensis Ser. On the basis of spectral data and chemical evidence. I - V were identified as 2alpha-hydroxyoleanolic acid (I), 2alpha-hydroxyursolic acid (II), 5, 7, 4'-trihydroxyflavone (IIl), beta-sitosterol (IV), daucostarine (V). All these compounds were isolated from Potentilla chinensis Ser for the first time.

Topics: Flavones; Flavonoids; Molecular Structure; Oleanolic Acid; Plants, Medicinal; Potentilla; Sitosterols; Triterpenes