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Condensed tannins from roots of Indigofera stachyodes / 中国中药杂志
China Journal of Chinese Materia Medica ; (24): 4131-4138, 2021.
Article in Chinese | WPRIM | ID: wpr-888072
ABSTRACT
Eleven condensed tannins were isolated from the roots of Indigofera stachyodes by various column chromatography techniques including silica gel, octadecyl silica(ODS), Sephadex LH-20, and semi-preparative high performance liquid chromatography(HPLC). These compounds were identified on the basis of physicochemical properties, nuclear magnetic resonance(NMR) and mass spectrometry(MS) data as stachyotannin A(1), epicatechin-(2β→O→7,4β→8)-epiafzelechin-(4β→8)-catechin(2), cinnamtannin D1(3), cinnamtannin B1(4), epicatechin-(2β→O→7,4β→8)-epiafzelechin-(4α→8)-epicatechin(5), gambiriin C(6), proanthocyanidin A1(7), proanthocyanidin A2(8), aesculitannin B(9), proanthocyanidin A4(10), and procyanidin B5(11). Compound 1 is a new compound. Compounds 2-11 were isolated from Indigofera for the first time. Furthermore, compounds 1, 2, and 4-11 showed inhibitory effects on thrombin-induced ATP release in platelets.
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Full text: Available Index: WPRIM (Western Pacific) Main subject: Plant Extracts / Magnetic Resonance Spectroscopy / Chromatography, High Pressure Liquid / Indigofera / Proanthocyanidins Language: Chinese Journal: China Journal of Chinese Materia Medica Year: 2021 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Plant Extracts / Magnetic Resonance Spectroscopy / Chromatography, High Pressure Liquid / Indigofera / Proanthocyanidins Language: Chinese Journal: China Journal of Chinese Materia Medica Year: 2021 Type: Article