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Studies on the Chemical Constituents of Xanthopappus Subacaulis C.Winkl. and Clerodendrum Japonicum (Thunb.) Sweet

Author: ShangJiNing
Tutor: YuanChengShan
School: Lanzhou University
Course: Organic Chemistry
Keywords: Chemical composition Column chromatography Daqing case Cheng- tung Gradient elution Ethanol extract NMR Petroleum ether Xanthopappus Preparative TLC Thin-layer chromatography Standard compounds Sweet Coumarin Flavonoids Diterpene Spectroscopy The structures of compounds Styptic hydroxy
CLC: R284
Type: Master's thesis
Year: 2010
Downloads: 181
Quote: 1
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Abstract


Huang Ying Ju (Xanthopappus subacaulis C. Winkl.), Asteraceae Huang Ying (Asteraceae) genus (Xanthopappus C. Winkl.) Plants . Styptic , emetic effects . Huang Ying daisy is a perennial stemless herb. Flowering from May to July . If period from August to September . Distributed in Yunnan , Sichuan , Qinghai , Gansu and other places . Born in the meadow , prairie or dry hillside at an altitude of 2230-4150 meters . Cheng- tung (Clerodendrum japonicum (Thunb.) Sweet), Verbenaceae (Verbenaceae) Cheng- tung genus plant (Clerodendrum L.) . Plant height of 1.5-2 m . Roots, leaves medicine . Root expelling wind and dampness , stasis swelling ; leaves detoxification pus efficacy . The Cheng- tanarius perennial deciduous or evergreen shrubs . Flowering from May to November . If period from May to November . Throughout the year can be adopted . Located in Jiangsu ; southern Zhejiang Province : Jiangxi ; southern Hunan ; Fujian ; Taiwan ; Guangdong ; Guangxi ; Sichuan ; Guizhou ; Yunnan . Born in the Asian tropical low altitude forest edge or bushes . In order to further study Huang Ying Ju (Xanthopappus subacaulis C. Winkl.) Full grass and Cheng- tung (Clerodendrum japonicum (Thunb.) Sweet) the chemical composition of the whole plants , the development of new traditional Chinese medicine resources , we Huang Ying Ju ( Xanthopappus subacaulis C. Winkl, . ) 95 % ethanol extract of chloroform and ethyl acetate and the two extraction portion , Cheng- Kazuto (Clerodendrum japonicum (Thunb.) Sweet) 95% ethanol extracts of petroleum ether , chloroform , ethyl acetate and n-butanol portion of the four extraction chemical Isolation and identification of the components of the system . Using silica gel column chromatography ( CC ) , preparative thin layer chromatography (PTLC), dextran column chromatography , polyamide column chromatography, recrystallization , and other means of separation 23 compounds ; use of EI-MS , 1D NMR (1H NMR, 13C NMR, DEPT) spectroscopy technology , and combined with the standard the compound control compared with literature data to determine the structure of the 23 compounds , they belong to the the diterpenoid , long-chain fatty acids , flavonoids , steroidal , coumaric factors and other types . Is a plant composition and biological activity of the papers last Verbenaceae Daqing reviewed and listed nearly a decade of separation to get the new structure of the compound , the name of the source plant and literature .

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