title: Two new triterpenoid saponins from rhizome of Anemone raddeana Regel.
abstract: Two new 27-hydroxyoleanolic acid-type triterpenoid saponins, raddeanoside Ra (1) and raddeanoside Rb (2), were isolated from the rhizome of Anemone raddeana Regel. The structures of the two compounds were elucidated to be 27-hydroxyoleanolic acid 3-O-beta-D: -glucopyranosyl-(1 --> 4)-alpha-L: -arabinopyranoside (1) and 27-hydroxyoleanolic acid 3-O-alpha-L: -arabinopyranosyl-(1 --> 3)-alpha-L: -rhamnopyranosyl-(1 --> 2)-alpha- L: -arabinopyranoside (2) on the basis of chemical and spectral evidence.
authors.affiliation: College of Traditional Chinese Medicine, Shenyang Pharmaceutical University, No. 103 Wenhua Road, Shenyang, Liaoning, People's Republic of China.
authors.forename: Li
authors.initials: L
authors.lastname: Fan
authors.forename: Jincai
authors.initials: J
authors.lastname: Lu
authors.forename: Jing
authors.initials: J
authors.lastname: Wang
authors.forename: Weiming
authors.initials: W
authors.lastname: Cheng
authors.forename: Yan
authors.initials: Y
authors.lastname: Yao
authors.forename: Runxiang
authors.initials: R
authors.lastname: Liu
authors.forename: Hongfen
authors.initials: H
authors.lastname: Zhang
mesh_terms: D031883:Anemone / Q000737:chemistry*; D009828:Oleanolic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D027343:Rhizome; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: C548216:27-hydroxyoleanolic acid 3-O-alpha-L-arabinopyranosyl-(1 -3)-alpha-L-rhamnopyranosyl-(1-2)-alpha-L -arabinopyranoside; C548215:27-hydroxyoleanolic acid 3-O-beta-D-glucopyranosyl- (1-4)-alpha-L-arabinopyranoside; D012503:Saponins; D014315:Triterpenes; D009828:Oleanolic Acid