title: Two new lupene-type triterpenoids from the roots of Liquidambar formosana.
abstract: Two new lupene-type triterpenoids, 3β,6β-dihydroxylup-20(29)-en-28-oic acid β-glucopyranosyl ester (1) and 2α-acetoxyl-3β,6β-dihydroxylup-20(29)-en-28-oic acid β-glucopyranosyl ester (2), along with 18 known compounds, were isolated from Liquidambar formosana. The structures were elucidated on the basis of spectroscopic methods, including UV, IR, ESIMS, 1D- and 2D-NMR experiments, as well as by comparison of the spectral data with those of related compounds.
authors.affiliation: State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.
authors.forename: Juan
authors.initials: J
authors.lastname: Yu
authors.forename: Shanshan
authors.initials: S
authors.lastname: Liu
authors.forename: Lijiang
authors.initials: L
authors.lastname: Xuan
mesh_terms: D031317:Liquidambar / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D018517:Plant Roots / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: C573160:2alpha-acetoxyl-3beta,6beta-dihydroxylup-20(29)-en-28-oic acid beta-glucopyranosyl ester; C573159:3beta,6beta-dihydroxylup-20(29)-en-28-oic acid beta-glucopyranosyl ester; D014315:Triterpenes