title: Antioxidant phenylpropanoid glycosides from Smilax bracteata.
abstract: From the ethanolic extract of Smilax bracteata, six phenylpropanoid glycosides, smilasides G-L (1-6), along with four known phenylpropanoid compounds, helonioside A, helonioside B, smilaside E, and (1-p-O-coumaroyl-6-O-feruroyl)-beta-d-fructofuranosyl-alpha-d-glucopyranoside, and fourteen known phenolic compounds were isolated. Their structures were elucidated on the basis of spectroscopic analyses. Moreover, 1-6 exhibited moderate scavenging activities against DPPH radicals.
authors.affiliation: National Research Institute of Chinese Medicine, Taipei 112, Taiwan, ROC.
authors.forename: Lijie
authors.initials: L
authors.lastname: Zhang
authors.forename: Chia-Ching
authors.initials: CC
authors.lastname: Liao
authors.forename: Hui-Chi
authors.initials: HC
authors.lastname: Huang
authors.forename: Ya-Ching
authors.initials: YC
authors.lastname: Shen
authors.forename: Li-Ming
authors.initials: LM
authors.lastname: Yang
authors.forename: Yao-Haur
authors.initials: YH
authors.lastname: Kuo
mesh_terms: D001713:Biphenyl Compounds; D016166:Free Radical Scavengers / Q000737:chemistry; D006027:Glycosides / Q000737:chemistry*; D006834:Hydrazines; D015394:Molecular Structure; D010851:Picrates; D035261:Plant Components, Aerial; D032281:Smilax / Q000737:chemistry*
chemical_list: D001713:Biphenyl Compounds; D016166:Free Radical Scavengers; D006027:Glycosides; D006834:Hydrazines; D010851:Picrates; C004931:1,1-diphenyl-2-picrylhydrazyl