title: [Study of chemical constituents in active parts of Mentha spicata III].
abstract: OBJECTIVE
  To study the chemical constituents of Mentha spicata.
  
  
  METHODS
  The chemical constituents were isolated by silica gel column chromatography, and identified by physical and chemical characters and spectroscopic analysis.
  
  
  RESULTS
  Compounds I - V were obtained and their structures were elucidated as protocatechuic aldehyde (I), protocatechuic acid (II), chrysoeriol (III), 5, 6-dihydroxy-7, 8, 3', 4'-tetramethoxyflavone (IV), nodifloretin (V).
  
  
  CONCLUSIONS
  Compound I and II were first isolated from the genus Mentha. Compound Ill, IV and V were isolated from M. spicata for the first time.
authors.affiliation: School of Traditional Chinese Medicines, Shenyang Pharmaceutical University, Shenyang 110016, China.
authors.forename: Guang-Tong
authors.initials: GT
authors.lastname: Chen
authors.forename: Hui-Yuan
authors.initials: HY
authors.lastname: Gao
authors.forename: Jian
authors.initials: J
authors.lastname: Zheng
authors.forename: Bin
authors.initials: B
authors.lastname: Wu
authors.forename: Xiao-Ke
authors.initials: XK
authors.lastname: Yang
authors.forename: Li-Jun
authors.initials: LJ
authors.lastname: Wu
mesh_terms: D001547:Benzaldehydes / Q000737:chemistry / Q000302:isolation & purification; D002396:Catechols / Q000737:chemistry / Q000302:isolation & purification; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification; D047309:Flavones / Q000737:chemistry / Q000302:isolation & purification*; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification; D062385:Hydroxybenzoates / Q000737:chemistry / Q000302:isolation & purification; D031337:Mentha spicata / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: C517790:5,6-dihydroxy-7,8,3',4'-tetramethoxyflavone; D001547:Benzaldehydes; D002396:Catechols; D004365:Drugs, Chinese Herbal; D047309:Flavones; D005419:Flavonoids; D062385:Hydroxybenzoates; C009091:protocatechuic acid; C005581:protocatechualdehyde; C007054:chrysoeriol