title: [Chemical Constituents from Leaves of "Chuju" Chrysanthemum morifolium and Their Antioxidant Activities in vitro].
abstract: OBJECTIVE
  To study the chemical constituents from the leaves of "Chuju" Chrysanthemum morifolium.
  
  
  METHODS
  All compounds were separated and purified by column chromatography over silica gel, Sephadex LH-20 and preparative HPLC. Their structures were identified by spectral methods including 1H-NMR and 13C-NMR.
  
  
  RESULTS
  21 compounds were isolated and identified as octa-cosyl alcohol (1), β-sitosterol (2), lupeol (3), α-amyrin (4), daucosterol (5), ineupatorolide B (6), syringin (7), chlorogenic acid (8), petasiphenol (9), physcion (10), acacetin (11), eupatilin (12), quercetin (13), diosmetin (14), luteolin (15), apigenin (16), apigenin- 7-O-β-D-glucopyranoside (17), quercetin-3-O-β-D-glucopyranoside (18), luteolin-7-O-β-D-gluco pyranoside (19), apigenin-7-O-β-D- neospheroside (20), and acacetin-7-O-β-D-glucoside (21).
  
  
  CONCLUSIONS
  Compounds 1-12, 18 and 20 are isolated from this plant for the first time. Compounds 10, 13, 14, 15 and 16 have shown strong antioxidant activities by DPPH · scavenging activity better than Vit C.
authors.forename: Qiang
authors.initials: Q
authors.lastname: Wei
authors.forename: Xiao-ying
authors.initials: XY
authors.lastname: Ji
authors.forename: Xian-shun
authors.initials: XS
authors.lastname: Long
authors.forename: Qian-rong
authors.initials: QR
authors.lastname: Li
authors.forename: Hao
authors.initials: H
authors.lastname: Yin
mesh_terms: D000975:Antioxidants / Q000737:chemistry*; D047310:Apigenin; D002726:Chlorogenic Acid; D031202:Chrysanthemum / Q000737:chemistry*; D047309:Flavones; D005419:Flavonoids; D005960:Glucosides; D047311:Luteolin; D010666:Phenylpropionates; D064209:Phytochemicals / Q000737:chemistry* / Q000302:isolation & purification; D018515:Plant Leaves / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D011794:Quercetin; D012855:Sitosterols
chemical_list: D000975:Antioxidants; D047309:Flavones; D005419:Flavonoids; D005960:Glucosides; D010666:Phenylpropionates; D064209:Phytochemicals; D012855:Sitosterols; C477955:acacetin-7-O-glucoside; D002726:Chlorogenic Acid; C045325:eupatilin; C025473:gamma-sitosterol; D047310:Apigenin; D011794:Quercetin; C028305:syringin; D047311:Luteolin; C023717:acacetin; C039602:diosmetin; C011015:lyoniside