OBJECTIVEEstablishing a subjective and objective method to conform the weighted coefficient in multicriteria optimization of the extraction technology about Chinese traditional compound drugs.

METHODThis article used analytic hierarchy process (AHP) to conform the weighted coefficient.

RESULTConsistency checking result (CR < 0.1) indicated that the weighted coefficient is reasonable and efficient.

CONCLUSIONAHP method is simple and of high accuracy. This method improved on the scientific and accuracy of multicriteria optimization of the extraction technology about Chinese traditional compound drugs.

In order to study the chemical constituents of the plant of Hydrangea paniculata and provide reference for the study of the bioactive substances, we isolated nine compounds from the dried branches of H. paniculata. Their structures were determined by application of spectroscopic (NMR, MS) and chemical methods. These compounds were identified as skimmin (1), isotachioside (2), 8-methoxy-7-O-beta-D-glucopyranosyloxy coumarin glycoside (3), scopolin (4), 1-(alpha-L-rhamnosyl-(1 --> 6) -O-beta-D-glucopyranosyloxy) - 3, 4, 5-trimethoxybenzene (5), apiosylskimmin (6), umbelliferone (7), scopoletin (8), 7-hydroxy-8-methoxycoumarin (9). Compounds 1 - 7 were isolated from H. paniculata for the first time.
Drugs, Chinese Herbal ; analysis ; isolation & purification ; Hydrangea ; chemistry

OBJECTIVETo investigate the chemical constituents in herbs of Polygonum jucundum.

METHODThe 85% ethanol extract was separated by means of silica gel and Sephadex LH-20 column chromatography. The compounds isolated from the plant were identified by physicochemical properties and spectroscopic evidence.

RESULTEight compounds were isolated and identified as: quercetin-3'-O-beta-D-galactoside (1), 8-methoxyquercetin (2), pigenin (3), luteolin (4), quercetin (5), 3,5,7-trihydroxychromone (6), p-hydroxybenzaldehyde (7), beta-sitosterol (8).

CONCLUSIONAll compounds were isolated from this plant for the first time, compounds 5- 8 were isolated from the genus Polygonum for the first time.

OBJECTIVETo study the chemical constituents of Xanthium mongolicum.

METHODThe compounds were isolated with column chromatography. The structures were determined by spectroscopic techniques.

RESULTEight compounds were isolated from X. mongolicum, four compounds are sesquiterpene lactones, two compounds are triterpenes and two compounds are lignins. Their structure elucidated as xanthatin (1), xanthinosin (2), 11alpha, 13-dihydroxanthatin (3), atractylenolide III (4), oleanolic acid (5), ursolic acid (6), lignocellulose (7), balanophonin (8).

CONCLUSIONCompounds 3-8 were isolated from this plant for the first time. Sesquiterpene lactones (1-3) had shown the induction hindrance activeness of the (ICAM-1), but the activitiy of 3 was weaker.

OBJECTIVETo study the chemical constituents from Centipeda minima.

METHODThe constituents were isolated by column chromatography on silica gel, Sephadex LH-20 and HPLC-ODS, and identified by spectroscopic methods.

RESULTTen compounds, (-)-cis-chrysanthenol-O-beta-D-glucopyranoside (1), methy 3,5-dicaffeoylquinate (2), 3,5-di-O-caffeoyl quinicacid (3), tricin (4), 2-amino-4-methyl-pentanoicacid (5), 2-amino-3-phenyl-propionic acid (6), 4-amino-4-carboxychroman-2-one (7), brevilin-A (8), arnicolide C (9), arnicolide D (10) were isolated and identified.

CONCLUSIONCompounds 1-7 were isolated from the plant for the first time.

OBJECTIVETo study the chemical constituents of the whole plant of fresh celery (Apium graveolens).

METHODThe constituents were isolated and purified by silica gel, Sephadex LH-20, ODS column chromatography, PTLC, HPLC, and their structures were elucidated on the basis of spectral evidences.

RESULTTwenty compounds were obtained and identified as falcariondiol (1), (9Z) 1,9-heptadecadiene-4,6-diyne-3,8,11-triol (2), oplopandiol (3), bergapten (4), 5,8-dimethoxy psoralen (5), isofraxidin (6), eugenic acid (7), trans-ferulic acid (8), trans-cinnamic acid (9), p-hydroxyphenylethanol ferulate (10), caffeoylquinic acid (11), 5-p-trans-coumaroylquinic acid (12), sedanolide (13), lunularin (14), lunularic acid (15), 2-(3-methoxy-4-hydroxyphenol)-propane-1,3-diol (16), D-allitol (17), beta-sitosterol (18), benzolic acid (19), succinic acid (20).

CONCLUSIONCompounds 2, 3, 6, 10, 12, 14-17 were isolated from genus Apium for the first time.

Ten compounds were isolated and purified by column chromatography over silica gel, preparative TLC, and Sephadex LH-20 from the whole plant of Solanum lyratum. The structures were elucidated on the basis of physico-chemical properties and spectral data as 1beta-hydroxy-1 ,2-dihydro-alpha-santonin (1) , boscialin (2) , blumenol C (3), 3beta-hydroxy-5alpha, 6alpha-epoxy-7-megastigmen-9-one(4), dehydrovomifoliol(5) , blumenol A(6), (1'S,2R,5S, 10R) -2-(1', 2'-dihydroxy-l1'-methylethyl) -6,10-dimethylspiro[4,5] dec-6-en-8-one(7) , (1'R,2R,5S,10R)-2-( 1',2'-dihydroxy-l '-methylethyl) -6,1 l0-dimethylspiro[4,5]dec-6-en-8-one( 8) , 2-(1',2'-dihydroxy-1 '-methylethyl) -6,1 0-dimethyl-9-hydroxyspiro [4,5] dec-6-en-8-one (9) , and grasshopper ketone (10). Compounds 1-10 were isolated from this plant for the first time.
Drugs, Chinese Herbal ; chemistry ; Solanum ; chemistry ; Terpenes ; analysis ; isolation & purification

OBJECTIVETo study the chemical constituents of Reineckia carnea.

METHODThe compounds were separated by means of solvent extraction, repeated chromatogramphy with silica gel, Sephadex LH-20 and MCI resin. The structures were determined by spectral analysis.

RESULTTen compounds were separated and elucidated as daucosterol (1), stigmasterol-3-O-beta-D-glu-copyranoside (2), myo-inositol(3), pentologenin (4), kitigenin (5), kitigenin5-O-beta-D-glu-copyranoside (6), neoaspidistrin (7), (1beta, 3beta, 16beta, 22S)-cholest-5-ene-1, 3, 16, 22-tetrol-1, 16-di-(beta-D-glucopyranoside) (8), rhodeasapogenin 1-0-alpha-L-rhamnopyranosyl-(1-2)-beta-D-xylopyrano-side (9), quercetin-3-O-beta-D-glucopyranosyl-(6-1)-alpha-L-rhamnopyranoside (10).

CONCLUSIONThe compounds 2, 3, 7, 9, 10 were discovered in this plant for the first time.

OBJECTIVETo study the chemical constituents of Swertia mileensis.

METHODThe air-dried whole plants of S. mileensis were extracted with 50% EtOH. The EtOH extract was suspended in H20 and extracted with petroleum ether, CHCl3 and n-BuOH successively. The compounds were isolated and purified by column chromatography from the CHCl3 fraction, and identified based on spectral analyses (MS, H-NMR, 13C-NMR).

RESULTTwelve compounds were isolated from S. mileensis, and were elucidated as 1,5, 8-trihydroxy-3-methoxyxanthone (1), 1-hydroxyl-2, 3, 5, 7-tetramethoxyxanthone (2), 1-hydroxyl-3, 5, 8-trimethoxyxanthone (3), 1-hydroxyl-2, 3, 4, 6-tetramethoxyxanthone (4), 1-hydroxyl-2, 3, 4, 7-tetramethoxyxanthone (5), 1,8-dihydroxy-3, 5-dimethoxyxanthone (6), 1, 7-dihydroxy-3, 8-dimethoxyxanthone (7), 1, 3, 5, 8-tetrahydroxyxanthone (8), balanophonin (9), oleanolic acid (10), maslinic acid (11), sumaresinolic acid (12).

CONCLUSIONCompounds 1, 3, 7-9, 11 and 12 were obtained from S. mileensis for the first time.

Twelve compounds were isolated from the herb of Chenopodium ambrosioides, and their structures were identified by spectroscopic methods as kaempferol-7-O-alpha-L-rhamnopyranoside (1), kaempferol-3,7-di-O-alpha-L-rhamnopyranoside (2), patuletin (3), quercetin-7-O-alpha-L-rhamnopyranoside (4), grasshopper ketone (5), 4-hydroxy-4-methyl-2-cyclohexen-1-one (6), syringaresinol (7), benzyl beta-D-glucopyranoside (8), dendranthemoside B (9), N-trans-feruloyl tyramine (10), N-trans-feruloyl 4'-O-methyldopamine (11), and 4-hydroxy-N-[2-(4-hydroxyphenyl) ethyl] benzamide (12). Among them,compounds 3, 6-8,10, and 12 were isolated from the genus Chenopodium for the first time, and compounds 2-12 were isolated from this plant for the first time.
Chenopodium ambrosioides ; chemistry ; Drugs, Chinese Herbal ; chemistry ; isolation & purification