title: [Studies on chemical constituents of Cynanchum forrestii].
abstract: OBJECTIVE
  To study the chemical constituents of Cynanchum forrestii.
  
  
  METHODS
  Chromatographic techniques were applied to isolated chemical constituents. The structures were identified on the basis of physico-chemical constants and spectroscopic data.
  
  
  RESULTS
  Eight compounds were isolated from the 95% ethanol extract of the roots of C. forrestii and elucidated as ( + ) -5'-methoxyisolariciresinol 3a-O-beta-D-glucopyranoside (1), hexahydroxycholest-7-en-6-one (2), tylophorinidine (3), sucrose (4), palmitic acid (5), beta-sitosterol (6), daucosterol (7), nonanedioic acid (8).
  
  
  CONCLUSIONS
  Compounds 1-3 from this genus, and compounds 4-8 from the plant were obtained for the first time.
authors.affiliation: Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing 100050, China.
authors.forename: Yue
authors.initials: Y
authors.lastname: Liu
authors.forename: Jing
authors.initials: J
authors.lastname: Liu
authors.forename: Shi-Shan
authors.initials: SS
authors.lastname: Yu
authors.forename: Xiang-Zhong
authors.initials: XZ
authors.lastname: Huang
authors.forename: You-Cai
authors.initials: YC
authors.lastname: Hu
mesh_terms: D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D002783:Cholestenones / Q000737:chemistry / Q000302:isolation & purification*; D031105:Cynanchum / Q000737:chemistry*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D007546:Isoquinolines / Q000737:chemistry / Q000302:isolation & purification*; D019308:Palmitic Acid / Q000737:chemistry / Q000302:isolation & purification; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: C529020:5'-methoxyisolariciresinol 3a-O-glucopyranoside; D000470:Alkaloids; D002783:Cholestenones; D005960:Glucosides; D007546:Isoquinolines; D019308:Palmitic Acid; C032276:tylophorinidine