title: New steroidal glycosides from Hosta plantaginea (Lam.) Aschers.
abstract: Four new furostanol glycosides were isolated from the flowers of Hosta plantaginea (Lam.) Aschers. On the basis of spectroscopic methods including 1D and 2D NMR experiments, their structures were elucidated as 26-O-β-d-glucopyranosyl-(25R)-22-O-methyl-5α-furostan-2α,3β,22ξ,26-tetrol 3-O-α-l-rhamnopyranosyl-(1 → 4)-O-β-d-xylopyranosyl-(1 → 3)-[O-β-d-glucopyranosyl-(1 → 2)]-O-β-d-glucopyranosyl-(1 → 4)-β-d-galactopyranoside (hostaplantagineoside A, 1), 26-O-β-d-glucopyranosyl-(25R)-5α-furostan-20(22)-ene-2α,3β,26-triol-3-O-β-d-glucopyranosyl-(1 → 2)-[O-β-d-xylopyranosyl-(1 → 3)]-O-β-d-glucopyranosyl-(1 → 4)-β-d-galactopyranoside (hostaplantagineoside B, 2), 26-O-β-d-glucopyranosyl-(25R)-5α-furostan-22(23)-ene-2α,3β,20α,26-tetraol-3-O-β-d-glucopyranosyl-(1 → 2)-[O-β-d-xylopyranosyl-(1 → 3)]-O-β-d-glucopyranosyl-(1 → 4)-O-β-d-galactopyranoside (hostaplantagineoside C, 3), 26-O-β-d-glucopyranosyl-(25R)-5α-furostan-20(22)-ene-2α,3β,26-triol-3-O-α-l-rhamnopyranosyl-(1 → 4)-O-β-d-xylopyranosyl-(1 → 3)-[O-β-d-glucopyranosyl-(1 → 2)]-O-β-d-glucopyranosyl-(1 → 4)-β-d-galactopyranoside (hostaplantagineoside D, 4).
authors.affiliation: a School of Pharmacy, Inner Mongolia Medical University , Hohhot 010059 , China.
authors.forename: Xiao-Juan
authors.initials: XJ
authors.lastname: Li
authors.forename: Li
authors.initials: L
authors.lastname: Wang
authors.forename: Pei-Feng
authors.initials: PF
authors.lastname: Xue
authors.forename: Hong-Xia
authors.initials: HX
authors.lastname: Xie
authors.forename: Hui
authors.initials: H
authors.lastname: Wei
authors.forename: Jing
authors.initials: J
authors.lastname: Wang
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification*; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification*; D031422:Hosta / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D010840:Phytosterols / Q000737:chemistry; D013237:Stereoisomerism; D013261:Sterols / Q000737:chemistry* / Q000302:isolation & purification*
chemical_list: D004365:Drugs, Chinese Herbal; D006027:Glycosides; D010840:Phytosterols; D013261:Sterols; C574436:furostanol glycoside
keywords: Hosta plantaginea; furostanol saponins; steroidal glycosides