title: A new diterpene glycoside from Rabdosia rubescens.
abstract: A new ent-kaurene beta-D-glucoside was isolated from Rabdosia rubescens, together with the known compounds oridonin, ponicidin, and pedalitin. The structure of new compound was determined, on the basis of spectral data and X-ray crystallographic analysis, to be ent-7 beta,20-epoxy-kaur-16-ene-1 beta,6 alpha,7 alpha,14 alpha,15 alpha-pentanol 1-O-beta-D-glucopyranoside.
authors.affiliation: Department of Chemistry, Zhengzhou University, China.
authors.forename: H M
authors.initials: HM
authors.lastname: Liu
authors.forename: X
authors.initials: X
authors.lastname: Yan
authors.forename: F
authors.initials: F
authors.lastname: Kiuchi
authors.forename: Z
authors.initials: Z
authors.lastname: Liu
mesh_terms: D018360:Crystallography, X-Ray; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D005947:Glucose / Q000737:chemistry; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D006868:Hydrolysis; D016018:Least-Squares Analysis; D009682:Magnetic Resonance Spectroscopy; D000432:Methanol; D008958:Models, Molecular; D010936:Plant Extracts / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013055:Spectrophotometry, Infrared
chemical_list: C406441:7,20-epoxykaur-16-ene-1,6,7,14,15-pentanol 1-O-glucopyranoside; D004224:Diterpenes; D005960:Glucosides; D010936:Plant Extracts; D005947:Glucose; D000432:Methanol