Two new antioxidant bergenin derivatives from the stem of Rivea hypocrateriformis |
| |
| Authors: | Zamarrud Ali Iftikhar Hussain Hidayat Ahmad Viqar Uddin Qaiser Muhammad Amyn Afroze Mohammad Faryal Vali |
| |
| Institution: | a Department of Botany, University of Karachi, Karachi-75270, Pakistan;b HEJ Research Institute of Chemistry, International Centre for Chemical and Biological Sciences, University of Karachi, Karachi-75270, Pakistan;c Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, 18059 Rostock, Germany;d Department of Chemistry, Universität Paderborn, Warburger Straβe 100, 33098 Paderborn, Germany;e Department of Microbiology, University of Karachi, Karachi-75270, Pakistan |
| |
| Abstract: | Two new bergenin derivatives, named rivebergenin A and B (1, and 2), together with two known compounds, bergenin (3) and norbergenin (4) were isolated from the stem of Rivea hypocrateriformis (Desr.) Choisy. The structures of the new compound have been assigned from 1H and 13C NMR spectra, DEPT, and by 2D COSY, HMQC, and HMBC experiments. Compounds 1-4 showed the strong antioxidant activity. |
| |
| Keywords: | Rivea hypocrateriformis Convolvulaceae NMR Antioxidant activity |
| 本文献已被 ScienceDirect PubMed 等数据库收录！ |
|
