title: [Chemical constituents in unsaponifiable matter from seeds of Trichosanthes hupehensis].
abstract: OBJECTIVE
  To study the chemical constituents of unsaponifiable matter from the seed oil of Trichosanthes hupehensis.
  
  
  METHODS
  The fatty oil from the seeds of T. hupehensis was extracted with petroleum ether. The saponification was carried out with potassium hydroxide. The unsaponifiable matter was isolated and purified by silica gel column chromatography. Their structures were elucidated by means of MS, IR, UV, and 1H-NMR.
  
  
  RESULTS
  Karounidiol, isokarounidiol, 5-dehydrokarounidiol, 7-oxodihydrokarounidiol, stigmast-7-en-3beta-ol, stigmast-7, 22-dien-3beta-ol, 10alpha-Cucurbitadienol, beta-sitosterol, stigmast-7, 22-dien-3beta-O-beta-D-glucoside were elucidated.
  
  
  CONCLUSIONS
  All of these compounds were found in this plant for the first time.
authors.affiliation: Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
authors.forename: Yan-Bin
authors.initials: YB
authors.lastname: Xi
authors.forename: Zhi-Mao
authors.initials: ZM
authors.lastname: Chao
authors.forename: Jin
authors.initials: J
authors.lastname: Wang
mesh_terms: D009828:Oleanolic Acid / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification; D010938:Plant Oils / Q000737:chemistry* / Q000302:isolation & purification; D010946:Plants, Medicinal / Q000737:chemistry*; D012639:Seeds / Q000737:chemistry*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification; D029778:Trichosanthes / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D010938:Plant Oils; D012855:Sitosterols; D014315:Triterpenes; C088116:karounidiol; C076913:7-oxodihydrokarounidiol; C025473:gamma-sitosterol; D009828:Oleanolic Acid