OBJECTIVETo investigate the chemical constituents of the branches and leaves of (Jvariu kurzii.

METHODCompounds were isolated and purified by silica gel and Sephadex LH-20 column chromatography. Their chemical structures were identified on the basis of physicoc hemical properties and spectral data.

RESULTNineteen compounds were isolated and identified as: beta-sitosterol hexadecanoate (1), stigmasterol hexadecanoate (2), beta-acetylsitosterol (3), beta-acetylstigmasterul (4), tetratriacontanol (5), dotriacontanoic acid (6), beta-sitosterol (7), stigmasterol (8), 5alpha-stigmast-3 , 6-dione (9) , 5alpha-stigmast-22-ene-3,6-dione (10), vanillic acid (11), protocatechuic acid (12), N-(p-trans-collmaroyl) tyramine (13). kaempferol-3-O-beta-D-(6"-O-p-coumaryoyl) galactopyraunoside (14), kaempferol-3-O-rutinoide (15), rutin (16), daucosterol (17), L-quebrachitol (18), allantoin (19), respectively.

CONCLUSIONCompounds 1-6, 9, 10, 13, 18, 19 were isolated from Annonaceac plants; Compounds 14-16 were obtained from the gemis Uvaria; an 7, 8, 11, 12, 17 were separated from this plant respectively for the first time.

The chemical constituents of Desmodium sambuense were studied. Chromatographic techniques were applied to isolate and purify the constituents, and the structures were identified on the basis of physico-chemical and spectroscopeic methods. Thirteen compounds were isolated from the 75% ethanol extract of Desmodium sambuens and elucidated as beta-amyrin(1), betulic acid(2), daucosterol(3), triacontanoic acid(4), lup-20(29)-en-3-one(5), tetracosanoic-2,3-dihydroxypropylester(6), stigmast-5-ene-3beta, 7alpha-ol (7),methyl phaeophorbidea(8), o-hydroxy benzoic acid(9),beta-sitosterol(10),d-catechin(11), luteolin (12), epigallocatechin (13). All of the compounds were isolated from this plant for the first time.
Fabaceae ; chemistry ; Plant Extracts ; analysis ; isolation & purification

The chemical constituents of Parthenocissus quinque were investigated. The chemical constituents were isolated by column chromatography on silical gel and sephadex LH-20. Their structures were elucidated on the basis of spectral analysis and of comparison of physical constant. Nine compounds were isolated from this plant and the structures of them were identified as 3,4,5-trihydroxy- benzoic acid (1), piceatannol (2), resveratrol (3), resveratrol trans-dehydrodimer (4), cyphoste mmin B (5), pallidol (6), cyphostemmin A (7), quercetin-3-O-alpha-L-rhamnoside (8), myricetin-3-O-alpha-L-rhamnoside (9), respectively. Compounds 1, 4-9 were isolated from this plant for the first time.
Plant Extracts ; analysis ; isolation & purification ; Vitaceae ; chemistry

OBJECTIVETo study the chemical constituents of Buddleja albiflora.

METHODThe constituents were isolated by column chromatography and their structures were elucidated by spectroscopic methods.

RESULTEleven compounds were isolated and identified as luteolin (1), quercetin (2), quercetin-3-O-beta-D-glucopyranoside (3), apigenin (4), apigenin-7-O-beta-D-glucopyranoside (5), apigenin-7-O-neohesperidoside (6), acacetin-7-O-beta-L-rhamnopyranosyl-(1-6)-beta-D-glucopyranoside (7), cranioside A (8), acetylmartynoside B (9), 4"-O-acetylmartynoside (10), isomartynoside (11).

CONCLUSIONAll these compounds were obtained from B. albiflora for the first time and compound 8 was obtained from the genus Buddleja for the first time.

OBJECTIVETo study the chemical constituents in the rhizoma of Iris dichotoma.

METHODThe chemical constituents were isolated by various column chromatographic methods. The structures of the compounds were elucidated on the basis of physiochemical properties and spectral analysis.

RESULTEleven compounds, hispidulin (1), rhamnocitrin (2), iristectorigenin A (3), 4', 5, 7, 8-tetrahydroxy-6-methoxy isoflavone (4), 6-hydroxybiochanin A (5), iristectorin B (6), iristectorigenin A (7), kaempferol-7-methyl ether (8), tamarixetin-7-glucoside (9), iristectorin A (10), 3', 3, 5-trihydroxy-4', 7-dimethoxy-flavone-3-O-beta-D-galactopyranoside (11) were isolated and identified.

CONCLUSIONCompounds 1-11 were obtained from this plant for the first time.

OBJECTIVETo study the chemical constituents of Swertia macrosperma.

METHODThe air-dried whole plants of Swertia macrosperma were extracted with boiling water. The extract was concentrated to a small amount of volume and extracted with petroleum ether, EtOAc and n-BuOH, successively. The compounds were isolated and purified by column chromatography from the EtOAc fraction, and identified based on spectral analyses (MS, 1H-NMR, 13C-NMR).

RESULTThirteen compounds were isolated from S. macrosperma, and were characterized as norbellidifolin (1), 1-hydroxy-3,7, 8-trimethoxy-xanthone (2), norswertianolin (3), swertianolin (4), 1,3,7,8-tetrahydroxyxanthone-8-O-beta-D-glucopyranoside (5), swertiamatin (6), decentapicrin (7), coniferl aldehyde (8), sinapaldehyde (9), balanophonin (10), together with beta-sitosterol, daucosterol, and oleanolic acid .

CONCLUSIONCompounds 2, 4-10 were obtained from Swertia macrosperma for the first time.

OBJECTIVETo study the chemical constituents of Chinese medicine Acacia catechu.

METHODIsolation and purification were carried out on normal phase silica gel, Sephadex LH-20, ODS column chromatography etc. Constituents were identified by physicochemical properties and spectral analysis.

RESULTTwelve compounds were identified as 4-hydroxybenzoic acid( 1), kaempferol (2), quercetin (3), 3,4',7-trihydroxyl-3', 5-dimethoxyflavone (4), catechin (5), epicatechin (6), afzelechin (7), epiafzelechin (8), mesquitol(9), ophioglonin (10), aromadendrin (11), and phenol (12).

CONCLUSIONCompounds 7, 12 were isolated from A. catechu for the first time, and compounds 4, 9-11 were isolated from the genus Acacia for the first time.

OBJECTIVETo study the chemical constituents of leaves of Albizia chinensis.

METHODThe chemical constituents were isolated and repeatedly purified with column chromatography. The structures were elucidated by physicochemical properties and spectroscopic methods.

RESULTEight compounds were isolated from the 95% ethanol extract of the leaves of A. chinensis and their structures were elucidated as quercetin 3'-O-beta-D-glucopyranosyl-3-O-rutinoside (1), kaempferol 3,7-di-O-beta-D-glucopyranoside (2), rutin (3), D-pinitol (4), luteolin 7-O-beta-D-glucopyranoside (5), (+)-lyoniresinol 3alpha-O-beta-D-glucopyranoside (6), (-)-lyoniresinol 3alpha-O-beta-D-glucopyranoside (7), syringin (8).

CONCLUSIONCompound 1, 2, 4, 6-8 were isolated from this genus for the first time, and compound 3 and 5 were obtained from this plant for the first time.

OBJECTIVETo study the chemical constituents in the dried roots of Saposhnikovia divaricata.

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

RESULTEighteen compounds were obtained and identified as 3'-O-angeloylhamaudol (1), isobergapten (2), imperatorin (3), pentacosane acid (4), anomalin (5), decursin (6), 5-methoxy-7-(3,3-dimethylallyl- oxy)coumarin (7), decursinol angelate (8), xanthotoxin (9), bergapten (10), tectochrysin (11), scopoletin (12), hamaudol (13), ledebouriellol (14), cimifugin (15), sec-O-glucosylhamaudol (16), 4'-O-beta-D-glucosyl-5-O-methylvisamminol (17), and prim-O-glucosylcimifugin (18).

CONCLUSIONCompounds 2, 6-8, and 11 were isolated from the roots of S. divaricata for the first time. Compounds 1 and 13-18 were chromones, 2, 3, 5-10 and 12 were coumarins, 4 was fatty acid, and 11 was flavonoid.

OBJECTIVETo study the chemical constituents from leaves of Uraria lacei.

METHODChemical constituents were isolated by silica gel column and Sephadex LH-20, and identified by physiochemical and spectral analyses and by comparison with the standard compounds.

RESULTEleven compounds were isolated and identified as naringenin-7-0-beta-D-glucopyranside (1), (2S)-5, 7-dimethoxy-4'-hydroxyflavan (2), dalbergioidin (3), 5, 7-dihydroxy-2'-methoxy-3', 4'-methylenedioxyisoflavanone (4), apigenin (5), 5, 7-dihydroxy-2', 4'-dimethoxyisoflavanone (6), 5, 7, 2', 4'-tetrahydroxyisoflavone (7), emodin (8), saliylic acid (9), daucosterol (10), and tetracosane (11).

CONCLUSIONAll compounds were isolated from this plant for the first time.