|
|||||
|
|
Triterpenoid saponins from the root of Anemone tomentosa |
|
| Authors: | Yi Wang Wei Kang Liang-jian Hong Wen-li Hai Xiao-yang Wang Hai-feng Tang Xiang-rong Tian |
| Affiliation: | 1. Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi??an, 710032, People??s Republic of China 2. Affiliated Hospital of Xi??an Medical College, 48 Fenghao West Rd., Xi??an, 710077, People??s Republic of China 3. Research and Development Center of Biorational Pesticide, College of Plant Protection, Northwest A&F University, Yangling, 712100, People??s Republic of China |
| Abstract: | Three new triterpenoid saponins, tomentoside A (1), B (2) and C (3), along with four known saponins (4?C7) were isolated from the root of Anemone tomentosa. The structures of the new compounds were elucidated as 3-O-??-d-ribopyranosyl-(1??3)-??-l-rhamnopyranosyl-(1??2)-[??-d-glucopyranosyl-(1??4)]-??-l-arabinopyranosyl hederagenin 28-O-??-l-rhamnopyranosyl-(1??4)-??-d-glucopyranosyl-(1??6)-??-d-glucopyranoside (1), 3-O-??-d-ribopyranosyl-(1??3)-??-l-rhamnopyranosyl-(1??2)-[??-d-glucopyranosyl-(1??4)]-??-d-xylopyranosyl hederagenin 28-O-??-l-rhamnopyranosyl-(1??4)-??-d-glucopyranosyl-(1??6)-??-d-glucopyranoside (2) and 3-O-??-d-galactopyranosyl-(1??3)-??-l-rhamnopyranosyl-(1??2)-??-d-xylopyranosyl oleanolic acid 28-O-??-l-rhamnopyranosyl-(1??4)-??-d-glucopyranosyl-(1??6)-??-d-glucopyranoside (3) on the basis of chemical and spectral evidence. In the oligosaccharide chains of compound 3, the characteristic d-galactose residue is a rare structural feature and secondly encountered among triterpenoid saponins from Anemone. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |