نتایج جستجو برای: chemical constituents

تعداد نتایج: 408435  

2012
Daniil N. Olennikov Larisa M. Tankhaeva Vyacheslav V. Partilkhaev Alexander V. Rokhin

The phytochemical study of flowering shoots of Caragana bungei Ledeb., Fabaceae, collected in Tuva Republic (Russian Federation) resulted in the isolation of sixteen compounds identified as β-sitosterol, β-sitosterol-3-Oglucoside, umbelliferone, kaempferol, quercetin, isorhamnetin-3-O-glucoside, isoquercitrin, rutin, narcissin, nicotiflorin, caffeic acid, 3-O-caffeoylquinic acid, 5-O-caffeoylqu...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2004
Amir Reza Jassbi Simin Zamanizadehnajari Satoshi Tahara

Acetone extract of aerial parts of Euphorbia marschalliana collected from Iran has been subjected to different chromatography techniques for fractionation and purification. The stereo-structures of the myrsinol esters 15-O-acetyl-3-O-propionyl-5-O-butanoyl-7-O-nicotinoylmyrsinol (1) and 15-O-acetyl-3,5-O-dibutanoyl-7-O-nicotinoylmyrsinol (2) have been probed using ROESY spectroscopy and modifie...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2014
Destaing F Abega Deccaux W F G Kapche Patrick Y Ango Renameditswe Mapitse Samuel O Yeboah Bonaventure T Ngadjui

A new clerodane diterpene derivative named crotonoligaketone was obtained from the stem bark of Croton oligandrum along with eight known compounds including crotonadiol, imbricatadiol, crotonzambefuran B, 7-acetoxytrachiloban-18-oic acid, 3-O-acetylaleuritolic acid, lupeol, beta-sitosterol, and stigmasterol. The structures of the isolated compounds were established on the basis of their spectra...

Journal: :Fitoterapia 2010
Li Pan Xiao Feng Zhang Ye Deng Yan Zhou Huan Wang Li Sheng Ding

A phytochemical study of an ethanol-soluble extract from the root barks of Daphne tangutica Maxim., a traditional Tibetan herb medicine, led to the isolation of 30 compounds, including eight daphnane diterpenes, nine coumarines, six lignans, five phenylpropanoid derivatives, beta-sitosterol and p-hydroxy benzonate. Two compounds out of these isolates are new daphne diterpene analogs, and their ...

2012
Bina Shaheen Siddiqui

Azadirachta indica A. Juss (Meliaceae) is indige­ nous to the Indo-Pakistan subcontinent and its various parts are reputed as therapeutic agents [2, 3]. Some of the constituents of neem have recently been shown to possess significant pesticidal activity [4]. More recent studies undertaken on the fresh, un­ dried, uncrushed, ripe and unripe, fruits and the un­ dried leaves of the plant by Siddiq...

2009
Yan Li

With the advance and development of the modern technology, more new chemical constituents of aloe have been found. It has become hot to study the pharmacological effects and application value of aloe. This paper concentrates on the varieties of aloe, the main chemical constituents and the health efficacy. And the future development and utilization of aloe products are also discussed.

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