title: New cycloartane glycosides from Camptosorus sibiricus Rupr.
abstract: Three new cycloartane glycosides were isolated from the whole herbs of Camptosorus sibiricus Rupr. By means of chemical and spectroscopic methods (IR, 1D, and 2D NMR, HR-MS, ESI-MS), the structures were established as (24R)-3beta,7beta,24,25, 30-pentahydroxycycloartane-3-O-beta-D-glucopyranosyl-(1-->4)-[alpha-L-arabinopyranosyl-(1-->2)-beta-D-glucopyranosyl]-24-O-beta-D-glucopyranoside (1), (24R)-3beta,7beta,24,25,30-pentahydroxycycloartane-3-O-beta-D-glucopyranosyl-(1-->4)-[beta-D-galactopyranosyl-(1-->2)-beta-D-glucopyranosyl]-24-O-beta-D-glucopyranoside (2), (24R)-3beta,7beta,24,25,30-pentahydroxycycloartane-30-O-coumaroyl-3-O-beta-D-glucopyranosyl-24-O-beta-D-glucopyranosyl-(1-->2)-beta-D-glucopyranoside (3). At the same time, the new compounds were tested for their cytotoxicities in vitro against human tumor cell lines (A375-S2, Hela) using MTT method.
authors.affiliation: Institute of Pharmaceutical Informatics, Zhejiang University in Zijingang Campus, Hangzhou, China.
authors.forename: Peng
authors.initials: P
authors.lastname: Zhang
authors.forename: Yi-Yu
authors.initials: YY
authors.lastname: Cheng
authors.forename: Zhong-Jun
authors.initials: ZJ
authors.lastname: Ma
mesh_terms: D029624:Ferns / Q000737:chemistry*; D006027:Glycosides / Q000737:chemistry*; D015394:Molecular Structure; D014315:Triterpenes / Q000737:chemistry*
chemical_list: D006027:Glycosides; D014315:Triterpenes; C085352:cycloartane