title: [Studies on alkalodial constituents in leaves of Uncaria hirsuta].
abstract: OBJECTIVE
  To study the alkaloidial constituents of the leaves of uncaria hirsuta.
  
  
  METHODS
  Some chromatographic methods were applied to isolate pure compounds and their structures were elucidated by spectroscopic methods.
  
  
  RESULTS
  Eleven compounds were isolated and identified as 19-epi-3-iso-ajmalicine (1), 3-isoajmalicine (2), harman (3), mitraphylline (4), isomitraphylline (5), isorhynchophylline (6), corynoxine (7), rhynchophylline (8), isomitraphyllic acid (9), uncarine A (10) and uncarine B (11).
  
  
  CONCLUSIONS
  Compounds 1-9 were firstly isolated from this plant.
authors.affiliation: Key Laboratory of Standardization of Chinese Medicines, Institute of Chinese Materia Medica of Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
authors.forename: Wen-bo
authors.initials: WB
authors.lastname: Xin
authors.forename: Ping
authors.initials: P
authors.lastname: Gu
authors.forename: Gui-xin
authors.initials: GX
authors.lastname: Chou
authors.forename: Zheng-tao
authors.initials: ZT
authors.lastname: Wang
mesh_terms: D000470:Alkaloids / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry*; D032070:Uncaria / Q000737:chemistry*
chemical_list: D000470:Alkaloids; D004365:Drugs, Chinese Herbal