OBJECTIVETo study the chemical constituents from the rhizome of Impatiens pritzellii var. hupehensis.

METHODThe 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.

RESULTFive 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).

CONCLUSIONCompound I is isolated from this plant for the first time, Compound II, III, IV, V are isolated from genus Balsaminaceae for the first time.

Impatiens ; chemistry ; Plants, Medicinal ; chemistry ; Rhizome ; chemistry ; Stearic Acids ; chemistry ; isolation & purification ; Stigmasterol ; analogs & derivatives ; chemistry ; isolation & purification

OBJECTIVETo study the constituents of the whole herbs of Vernonia cinerea. by bio-activity guided isolation with PC-12 model.

METHODThe constituents were separated by column chromatography and the structures were elucidated by spectroscopic methods.

RESULTFour compounds were identified to be (+)-lirioresinol B (1), stigmasterol (2), stigmasterol-3-O-beta-D-glucoside (3), 4-sulfo-benzocyclobutene (4), and their NGF inducing activity were also investigated.

CONCLUSIONCompounds 1, 3, 4 were isolated from this genus for the first time, and compound 4 was identified as a new natural product. Compounds 1, 3, 4 showed cytotoxicity on PC-12, and compounds 2, 3, 4 showed inhibition activity. Compound 4 showed a specific effect on the survival of TrkA fibroblasts, and resulted in the inducing NGF activity.

Animals ; Drugs, Chinese Herbal ; chemistry ; Glucosides ; chemistry ; Magnetic Resonance Spectroscopy ; Molecular Structure ; PC12 Cells ; Polycyclic Compounds ; chemistry ; pharmacology ; Rats ; Stigmasterol ; analogs & derivatives ; chemistry ; Vernonia ; chemistry

OBJECTIVETo study the chemical constituents of Dendobium crystallinum.

METHODCompounds were isolated and purified by silica gel and Sephadex LH-20 column chromatography. Their structures were identified by physicochemical properties and spectral analyses.

RESULTNine compounds were obtained and identified as: 4, 4'-dihydroxy-3, 5-dimethoxybi-benzyl (1), gigantol (2), naringenin (3) , p-hydroxybenzoic acid (4), n-tetracosyl trans-p-cou-marate (5), n-octacosy trans-p-coumarate (6), n-hexacosyl trans-ferulate (7), stigmasterol (8), daucosterol (9).

CONCLUSIONAll these compounds were obtained from this plant for the first time, compounds 1 and 4 were isolated firstly from the genus.

Bibenzyls ; Chromatography ; Dendrobium ; chemistry ; Drugs, Chinese Herbal ; chemistry ; Flavanones ; chemistry ; Guaiacol ; analogs & derivatives ; chemistry ; Magnetic Resonance Spectroscopy ; Parabens ; chemistry ; Sitosterols ; chemistry ; Stigmasterol ; chemistry

AIMTo study the constituents of the root of Gypsophila oldhamiana Miq.

METHODSSilica gel column chromatographic technique was used for the isolation and purification of compounds. The structures were elucidated on the basis of spectral data and chemical evidences.

RESULTSFive compounds were obtained and identified as the beta-D-glucoside of alpha-spinasterol (I), tetracosyl caffeate (II), sucrose (III), beta-sitosterol (IV) and daucosterol (V).

CONCLUSIONCompound II is a new compound. Compound I was isolated from this plant for the first time.

Caffeic Acids ; chemistry ; isolation & purification ; Caryophyllaceae ; chemistry ; Molecular Conformation ; Molecular Structure ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Stigmasterol ; analogs & derivatives ; chemistry ; isolation & purification ; Sucrose ; chemistry ; isolation & purification

OBJECTIVETo investigate the chemical constituents of the bulbs of Bolbostemma panicultum.

METHODThe compounds were isolated by column chromatography on silica gel, C18, Sephadex LH-20 separately and their structures were elucidated by chemical and spectroscopic technologies.

RESULTEight compounds were isolated and identified as maltol(I), emodin(II), cucurbitacin B(III), cucurbitacin E(IV), stigmasta-7, 22, 25-triene-3-ol(V), stigmasta-7, 22, 25-triene-3-nonadecanoic acid ester(VI), stigmasta-7, 22, 25-triene-3-O-beta-D-glucopyranoside(VII), stigmasta-7, 22, 25-triene-3-O-beta-D-(6'-palmitoyl) glucopyranoside(VIII).

CONCLUSIONI-VIII were obtained from this plant for the first time; VI and VIII are new compounds.

Cucurbitaceae ; chemistry ; Emodin ; chemistry ; isolation & purification ; Molecular Structure ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Saponins ; chemistry ; isolation & purification ; Stigmasterol ; analogs & derivatives ; chemistry ; isolation & purification ; Triterpenes ; chemistry ; isolation & purification

OBJECTIVETo study the chemical constituents in rhizome of Pinellia ternata.

METHODThe constituents were isolated by silica-gel and Sephadex LH-20 chromatography. The structures were identified by spectroscopic analysis including 2D NMR techniques.

RESULTSix compounds were obtained and identified as stigmast-4-en-3-one(I), cycloartenol(II), 5alpha,8alpha-epidioxyergosta-6,22-dien-3-ol(III), beta-sitosterol-3-O-beta-D-glucoside-6'-eicosanate(IV), alpha-monpalmitin(V), beta-sitosterol(VI). The bioactive assay indicated that: compound III was active against the human tumor cell lines HCT-8, Bel-7402, BGC-823, A549, A2780.

CONCLUSIONCompounds I-IV were isolated from Pinellia ternata for the first time, compound II was the first triterpene isolated from this genus. Compound III may be one of the antitumor constituents of P. ternata.

Antineoplastic Agents, Phytogenic ; chemistry ; isolation & purification ; pharmacology ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Ergosterol ; analogs & derivatives ; chemistry ; isolation & purification ; pharmacology ; Humans ; Phytosterols ; chemistry ; isolation & purification ; Pinellia ; chemistry ; Plants, Medicinal ; chemistry ; Rhizome ; chemistry ; Stigmasterol ; analogs & derivatives ; chemistry ; isolation & purification ; Triterpenes

OBJECTIVETo investigate the chemical constituents from the root of Psammosilene tunicoides.

METHODColumn chromatographic methods were used to isolate the chemical constituents of this plant. ESI-MS, EI-MS and NMR methods were employed for their structural elucidation.

RESULTSeven compounds were isolated and identified as goyaprosaponin (1), Soya-cerebroside (2), tectoridin (3), alpha-spinasterol (4), tetracosanoic acid (5), beta-sitosterol (6), daucosterol (7) respectively.

CONCLUSIONCompounds 2-7 were obtained from genus Psammosilene for the first time.

Caryophyllaceae ; chemistry ; Cerebrosides ; chemistry ; isolation & purification ; Isoflavones ; chemistry ; isolation & purification ; Magnetic Resonance Spectroscopy ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Spectrometry, Mass, Electrospray Ionization ; Stigmasterol ; analogs & derivatives ; chemistry ; isolation & purification

OBJECTIVETo study the chemical constituents in the fruits of Eucalyptus globulus Labill.

METHODThe chemical constituents were isolated by various column chromatographic methods and structurally elucidated by IR, NMR and MS evidences.

RESULTFifteen compounds were obtained and identified as beta-sitosterol (1), betulinic acid (2), stigmasterol (3), euscaphic acid (4), 2a-Hydroxybetulinic acid (5), macrocarpal B (6), macrocarpal A (7), oleanolic acid (8), 3,4,3'-O-trimethylellagic acid (9), 3-O-methylellagic acid 4'-O-(2"-O-acetyl )-alpha-L-rhamnopyranoside (10), camaldulenside (cypellocarpin C, 11), 3-O-methylellagic acid 4'-O-alpha-L-rhamnopyranoside (12), 3-O-methylellagic acid (13), ellagic acid (14), and gallic acid (15).

CONCLUSIONCompounds 4 and 5 from genera Eucalyptus, 1, 3 and 11 from plant E. globulus, and 6, 7, 9 and 15 from the fruits of E. globulus were isolated for the first time.

Cyclohexanecarboxylic Acids ; chemistry ; isolation & purification ; Eucalyptus ; chemistry ; Fruit ; chemistry ; Glucosides ; chemistry ; isolation & purification ; Molecular Structure ; Phloroglucinol ; analogs & derivatives ; chemistry ; isolation & purification ; Plants, Medicinal ; chemistry ; Sesquiterpenes ; chemistry ; isolation & purification ; Sitosterols ; chemistry ; isolation & purification ; Stigmasterol ; chemistry ; isolation & purification

OBJECTIVETo study the chemical constituents from the roots of Ficus hirta.

METHODCompounds were isolated by chromatographic techniques on silica gel and HP-20 resin columns. Their structures were elucidated by chemical and spectroscopic methods.

RESULTTen compounds were identified as beta-sitosterol (1), stigmasterol (2), psoralene (3), 3beta-hydroxy-stigmast-5-en-7-one (4), 5-hydroxy-4', 6, 7, 8-tetramethoxy flavone (5), 4', 5, 6, 7, 8-pentamethoxy flavone (6), 4', 5, 7-trihydroxy-flavone (7), 3beta-acetoxy-beta-amyrin (8), 3beta-acetoxy-alpha-amyrin (9) and hesperidin (10).

CONCLUSIONThe compounds 4, 5, 6 were obtained from this genus for the first time, and all the compounds were obtained from this plant for the first time.

Ficus ; chemistry ; Ficusin ; chemistry ; isolation & purification ; Flavones ; chemistry ; isolation & purification ; Oleanolic Acid ; analogs & derivatives ; chemistry ; isolation & purification ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Sitosterols ; chemistry ; isolation & purification ; Stigmasterol ; chemistry ; isolation & purification

OBJECTIVETo investigate the chemical constituents of the brown alga D. divaricata, and to test cytotoxicities of the purified compounds.

METHODCompounds were isolated by normal phase silica gel, Sephadex LH-20 chromatography and reverse phase HPLC techniques. Their structures were elucidated by spectroscopic methods including IR, MS and NMR. Cytotoxicities were tested by MTT method.

RESULTEight compounds were isolated from ethanolic extract of the brown alga D. divaricata and their structures were identified as (-)-torreyol (I), 4beta, 5alpha-dihydroxycubenol (II), 3-farnesyl-p-hydroxybenzioc acid (III), chromazonarol (IV), fucosterol (V), phenyl acetylamine (VI), 4-hydroxybenzoic acid (VII) and n-hexadecanoic acid (VIII).

CONCLUSIONCompound II and IV were obtained from this alga for the first time. The others were isolated from the Dictyotaceae algae for the first time. All compounds were inactive (IC50 > 10 microg x mL(-1)) against human tumor cell lines KB, Bel-7402, PC-3M, Ketr 3 and MCF-7.

Cell Line, Tumor ; drug effects ; Humans ; Parabens ; chemistry ; isolation & purification ; pharmacology ; Phaeophyta ; chemistry ; Stigmasterol ; analogs & derivatives ; chemistry ; isolation & purification ; pharmacology ; Terpenes ; chemistry ; isolation & purification ; pharmacology ; Xanthenes ; chemistry ; isolation & purification ; pharmacology