title: Three new acylated flavone C-glycosides from the flowers of Trollius chinensis.
abstract: Three new flavone C-glycosides with the substitution of the unusual acyl, 2''-O-veratroylisoswertisin (1), 3''-O-2-methylbutyrylisoswertiajaponin (2), and 3''-O-2-methylbutyrylvitexin (3), together with the known compounds of 2''-O-2-methylbutyrylisoswertisin (4), 3''-O-2-methylbutyrylisoswertisin (5), and trollisin I (6) were isolated from the antibacterial fraction of the aqueous extract of the flowers of Trollius chinensis. The structural elucidations of these compounds were carried out by a detailed analysis of the NMR and MS spectra.
authors.affiliation: School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China. lizhanlin1030@yahoo.com.cn
authors.forename: Zhan-Lin
authors.initials: ZL
authors.lastname: Li
authors.forename: Dan-Yi
authors.initials: DY
authors.lastname: Li
authors.forename: Hui-Ming
authors.initials: HM
authors.lastname: Hua
authors.forename: Xiao-Hui
authors.initials: XH
authors.lastname: Chen
authors.forename: Chul-Sa
authors.initials: CS
authors.lastname: Kim
mesh_terms: D000215:Acylation; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D047309:Flavones / Q000737:chemistry / Q000302:isolation & purification*; D035264:Flowers / Q000737:chemistry; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D029626:Ranunculaceae / Q000737:chemistry*
chemical_list: C541198:2''-O-veratroylisoswertisin; C541197:3''-O-2-methylbutyrylisoswertiajaponin; C541196:3''-O-2-methylbutyrylvitexin; D004365:Drugs, Chinese Herbal; D047309:Flavones; D006027:Glycosides