stigmasterol and stearic-acid

To investigate the chemical constituents of the roots of Berchemia lineate as a medicinal plant of Yao nationality in China.. Compounds were isolated by various column chromatography and elucidated by physicochemical and spectral analysis.. Nine compounds were isolated from the 95% ethanol extract of the roots of Berchemia lineate and their structures were identified as palmitic acid (1), octadecanoic acid (2), beta-sitosterol (3), stigmasterol (4), fernenol (5), chrysophanol (6), physcion (7), floribundiquinone D (8), 2-acetylphyscion(9) respectively.. Compounds 1-4,7-9 are isolated from this plant for the first time,and compounds land 2 are firstly isolated from this genus.

Topics: China; Emodin; Molecular Structure; Palmitic Acid; Plant Roots; Plants, Medicinal; Rhamnaceae; Solvents; Stearic Acids; Stigmasterol

Two new diterpenoids, 14,18-dihydroxyabieta-8,11,13-trien-7-one (1) and 13-acetyl-14,18-dihydroxy-podocarpa-8,11,13-triene (2), together with eight known compounds, i.e., gaultheric acid (3), vanillic acid (4), 4-hydroxybenzoic acid (5), cinnamic acid (6), stearic acid (7), palmitic acid (8), beta-sitosterol (9), and stigmasterol (10), were isolated from the MeOH extract of the whole plant of Gaultheria itoana Hayata (Ericaceae). The structures of the new constituents were elucidated by spectroscopic methods (UV, IR, and 1D- and 2D-NMR) and by mass spectrometry (HR-ESI-MS). Among them, 1 and 2 were demonstrated to exhibit significant cytotoxic activity against the LNCaP cell line.

Topics: Antineoplastic Agents, Phytogenic; Cell Line, Tumor; Cinnamates; Diterpenes; Gaultheria; Humans; Lung Neoplasms; Magnetic Resonance Spectroscopy; Methanol; Molecular Structure; Palmitic Acid; Parabens; Plant Extracts; Sitosterols; Spectrometry, Mass, Electrospray Ionization; Stearic Acids; Stigmasterol; Vanillic Acid

To Study liposoluble constituents of Teurium labiosum.. The constituents were isolated and purified by silica gel column and Sephadex LH-20 chromatography. Their structures were elucidated by physicochemical properties and spectral analysis.. Six compounds were obtained and identified as stearic acid (I), alpha-spinasterol (II), Methyl phaeophorbide a (III), friedelino (IV), lupeol (V) and stigmasta-5,22-dien-3beta-ol (VI).. All these compounds are obtained from this plant for the first time.

Topics: Alcohols; Lamiaceae; Magnetic Resonance Spectroscopy; Oleanolic Acid; Pentacyclic Triterpenes; Plants, Medicinal; Solvents; Stearic Acids; Stigmasterol; Triterpenes

To study the chemical constituents from the rhizome of Impatiens pritzellii var. hupehensis.. The rhizome were extracted with methanol, isolated and purified by column chromatography on silica gel. All the compounds were identified on the basis of spectral analysis (including IR, MS, NMR) and physico-chemical characters.. Five compounds were identified as a-spinasterol (I), alpha-spinasteryl-7, 22-dien-3-O-beta-D-glucopyranoside (II), stigmast-7, 22-dien-3-one (III), stearic acid (IV), hentriantane (V).. Compound I is isolated from this plant for the first time, Compound II, III, IV, V are isolated from genus Balsaminaceae for the first time.

Topics: Impatiens; Plants, Medicinal; Rhizome; Stearic Acids; Stigmasterol