title: Two new 3-oxo-α-ionol glucosides from Urtica laetevirens Maxim.
abstract: Two new 3-oxo-α-ionol glucoside isomers, (6R,9R)-3-oxo-α-ionol-9-O-β-D-glucopyranosyl (1 → 2)-β-D-glucopyranoside (1) and (6S,9R)-3-oxo-α-ionol-9-O-β-D-glucopyranosyl (1 → 2)-β-D-glucopyranoside (2) were isolated from the aerial parts of Urtica laetevirens Maxim. Their structures, including stereochemistry, were established by spectral analyses (HR-ESI-MS, NMR and CD). Also, 3-oxo-α-ionol glucosides were isolated from Urtica species for the first time.
authors: College of Bioengineering, Dalian University, Dalian 116622, China.
authors: Yuan
authors: Y
authors: Zhou
authors: Bao-Min
authors: BM
authors: Feng
authors: Li-Ying
authors: LY
authors: Shi
authors: Hui-Guo
authors: HG
authors: Wang
authors: Ling
authors: L
authors: Tang
authors: Yong-Qi
authors: YQ
authors: Wang
mesh_terms: D002942:Circular Dichroism; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D021241:Spectrometry, Mass, Electrospray Ionization; D013237:Stereoisomerism; D027003:Urticaceae / Q000737:chemistry*
chemical_list: D005960:Glucosides