From the whole plants of Aster sampsonii, ten compounds were isolated, and were characterized as (4alphaR, 4'alphaR, 5S, 5'S, 9alphaR, 9'alphaR)-4, 4', 4alpha, 4'alpha, 5, 5', 6, 6', 7, 7', 8, 8'-dodecahydro-3, 3', 4alpha, 4'alpha, 5, 5'-hexamethyl-2H, 2'H-9alpha, 9' alpha-binaphtho[2, 3-b]furan-2, 2'-dione(1), furanoligularenone(2), (4alphaR, 5S, 8alphaR)-4alpha, 5, 6, 7, 8, 8alpha-hexahydro-8alpha-hydroxy-3, 4alpha, 5-trimethylnaphtho[2, 3-b]furan-2(4H)-one(3), (4alphaR, 5S, 8alphaS)4alpha, 5, 6, 7, 8, 8alpha-hexahydro-8alpha-hydroxy-3, 4alpha, 5-trimethylnaphtho[2, 3-b]furan-2(4H)-one(4), methyl-1'-hydroxy-2', 6'-dimethoxy-4'-oxocyclohexanacetate(5), 1'-hydroxy-2'-methoxy-4'-oxocyclohexanacetate methyl(6), loliolide (7), jacaranone (8), beta-sitosterol(9), friedeline (10). The structures of all compounds were elucidated on the basis spectroscopic data, including IR, EI-MS, HR-ESI-MS, and 1D and 2D NMR data. The bioassays showed weak sterilization activities for compound 3. Compounds 1-8 were obtained from A. sampsonii for the first time.
Aster Plant ; chemistry ; Plant Extracts ; analysis ; isolation & purification

OBJECTIVETo study the chemical constituents from the whole plant of Aster poliothamnus.

METHODSeparating the chemical constituents by means of chromatography and identifying ther structures on basis of chemical and spectral tecnology.

RESULT AND CONCLUSIONA new triterpene saponin was isolated and identified.

Aster Plant ; chemistry ; Molecular Structure ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Saponins ; chemistry ; isolation & purification

OBJECTIVETo determine the content of shionone in Radix Aster from several different locations and markets.

METHODThe HPLC analysis was used to determine shionone directly, using Polaris C18 column and acetonitrile as the mobile phase with a flow rate of 1.0 mL.min-1, and the UV detection wavelength was 200 nm.

RESULT AND CONCLUSIONThe content of shionone was from 0.06% to 0.18%, depending on different locations and markets.

Aster Plant ; chemistry ; China ; Chromatography, High Pressure Liquid ; methods ; Drugs, Chinese Herbal ; analysis ; Ecosystem ; Plant Roots ; chemistry ; Plants, Medicinal ; chemistry ; Triterpenes ; analysis

Tibetan medicine Asteris Flos is the flowers of Aster souliei, A. flaccidus, and A. asteroides, with the function of clearing away heat and toxic matter, relieving cough, and removing phlegm. In order to control the quality of Asteris Flos, the morphological and chemical methods were established for identification of three origins. The morphological features of three species were described and photographed, and the microscopic characteristics of three drug powders were also described in detail and pictured. The results showed that three origins of Asteris Flos could be easily distinguished by their macro- and micro-morphologic features, and a key for distinguishing the three origins was given. Moreover, a TLC method, with apigenin-7-O-β-D-glucurono pyranoside and chlorogenic acid as chemical references, was also established for the identification of three origins. The results showed that the TLC chromatograms of the flowers of A. souliei and A. flaccidus were very similar, but different from that of A. asteroides. The established macroscopic, powder microscopic and TLC methods for identification of three origins of AF were simple, accurate, and reproducible, and also effective and easy to operate.
Aster Plant ; anatomy & histology ; chemistry ; cytology ; Chlorogenic Acid ; analysis ; Chromatography, Thin Layer ; methods ; Flowers ; anatomy & histology ; chemistry ; cytology ; Medicine, Tibetan Traditional

By using a combination of various chromatographic techniques including column chromatography over silica gel and Pharmadex LH-20 and reversed-phase HPLC, two minor new compounds, labda-12, 14-dien-6beta, 7alpha, 8beta, 17-tetraol (1), 2, 3-cis-6-acetyl-5-hydroxy-2-(hydroxymethylvinyl)-2, 3-dihydrobenzofuran-3-ol angelate (2), and a minor new natural product 6-methoxy-4-methyl-3, 4-dihydro-2H-naphthalen-1-one (3) have been isolated from an ethanolic extract of Heteroplexis micocephala. Their structures were elucidated with spectroscopic data analysis including 2D NMR experiments.
Aster Plant ; chemistry ; Benzofurans ; chemistry ; isolation & purification ; Diterpenes ; chemistry ; isolation & purification ; Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Naphthalenes ; chemistry ; isolation & purification ; Plants, Medicinal ; chemistry

OBJECTIVETo study the chemical constituents in root and rhizome of Aster tataricus.

METHODSCompounds were isolated and purified by silica gel and sephadex LH-20 column chromatography. Their structures were identified by physicochemical properties and spectral analysis.

RESULTNine compounds were isolated and identified as quercetin (I), kaemferol (II), emodin (III), chrysophanol (IV), physcion (V), benzoic acid (VI), p-hydroxy-bezoic acid (VII), E-caffeic acid (VIII), E-ferulic acid hexacosyl ester (IX).

CONCLUSIONCompounds IV, V, VI, VII, VIII, IX were isolated from A. tataricus for the first time.

Anthraquinones ; chemistry ; isolation & purification ; Aster Plant ; chemistry ; Benzoic Acid ; chemistry ; isolation & purification ; Emodin ; analogs & derivatives ; chemistry ; isolation & purification ; Plants, Medicinal ; chemistry ; Rhizome ; chemistry

OBJECTIVETo research the expectorant components in volatile oil from the root and rhizome of Aster tataricus.

METHODGC-MS was applied to isolate and identify the compounds. In addition, TLC was used to isolate compound, and its structure was elucidated on the basis of spectral data analysis. At the same time, its expectorant effect was observed by method of the excretion quantity of phenol red in trachea of mice.

RESULTSeven compounds were isolated and identified by GC-MS, they were (R)(-)-p-menth-1-en-4-ol (1), 2-undecanone (2), n-decanoic acid (3), (-)-spathulenol (4), hexahydrofamrnesyl acetone (5), hexadecanoic acid (6), and cis-9, cis-12-octaecadienoic acid (7). A known compound 1-acetoxy-2-ene(E)-4,6- decandiyne was isolated from the root and rhizome of A. tataricus, and it was shown to have expectorant effect.

CONCLUSION1-Acetoxy-2-ene(E) -4,6- decandiyne, a main compound in volatile oil, had been found to have expectorant effect.

Animals ; Aster Plant ; chemistry ; Drugs, Chinese Herbal ; chemistry ; isolation & purification ; pharmacology ; Expectorants ; chemistry ; isolation & purification ; pharmacology ; Gas Chromatography-Mass Spectrometry ; Magnetic Resonance Spectroscopy ; Male ; Mice ; Oils, Volatile ; chemistry ; Plant Roots ; chemistry ; Rhizome ; chemistry