title: Studies on chemical constituents of Ophiopogon japonicus.
abstract: Two new and six known steroidal glucosides were isolated from the tuber of Ophiopogon japonicus. The new steroidal glucosides were established as (20R,25R)-26-O-β-d-glucopyranosyl-3β,26-dihydroxycholest-5-en-16,22-dioxo-3-O-α-l-rhamnopyranosyl-(1 → 2)-β-d-glucopyranoside (1) and 26-O-β-d-glucopyranosyl-(25R)-furost-5-en-3β,14α,17α,22α,26-pentaol-3-O-α-l-rhamnopyranosyl-(1 → 2)-β-d-glucopyranoside (3) on the basis of spectroscopic data as well as chemical evidence.
authors.affiliation: a Key Laboratory of Effective Substances of Traditional Chinese Medicine, Jilin Academy of Chinese Medicine Sciences , Changchun 130012 , China.
authors.forename: Yue
authors.initials: Y
authors.lastname: Liu
authors.forename: Ling-Zhi
authors.initials: LZ
authors.lastname: Meng
authors.forename: Sheng-Xu
authors.initials: SX
authors.lastname: Xie
authors.forename: Tun-Hai
authors.initials: TH
authors.lastname: Xu
authors.forename: Lian-Kun
authors.initials: LK
authors.lastname: Sun
authors.forename: Tong-Hua
authors.initials: TH
authors.lastname: Liu
authors.forename: Ya-Juan
authors.initials: YJ
authors.lastname: Xu
authors.forename: Dong-Ming
authors.initials: DM
authors.lastname: Xu
mesh_terms: D002782:Cholestenes / Q000737:chemistry / Q000302:isolation & purification*; D002783:Cholestenones / Q000737:chemistry / Q000302:isolation & purification*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D031441:Ophiopogon / Q000737:chemistry*; D035281:Plant Tubers / Q000737:chemistry; D013237:Stereoisomerism; D013256:Steroids / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: C000593159:(20R,25R)-26-O-beta-D-glucopyranosyl-3beta,26-dihydroxycholest-5-en-16,22-dioxo-3-O-alpha-L-rhamnopyranosyl-(1-2)-beta-D-glucopyranoside; C000593160:26-O-beta-D-glucopyranosyl-(25R)-furost-5-en-3beta,14alpha,17alpha,22alpha,26-pentaol-3-O-alpha-L-rhamnopyranosyl-(1-2)-beta-D-glucopyranoside; D002782:Cholestenes; D002783:Cholestenones; D005960:Glucosides; D006027:Glycosides; D013256:Steroids
keywords: Liliaceae; Ophiopogon japonicus; steroidal glucoside