title: [Studies on the chemical constituents of Coeloglossum viride (L.) Hartm. var. bracteatum (Willd.) Richter].
abstract: OBJECTIVE
  To study the chemical constituents of the rhizomes of Coeloglossum viride (L.) Hartm. var. bracteatum (Willd.) Richter.
  
  
  METHODS
  The compounds were mainly isolated with normal phase and reverse phase column chromatographic methods and HPLC. Their structures were elucidated on the basis of physical constants and spectral analysis (UV, IR, EI-MS, positive and negative FAB-MS, APCI-MS, 1HNMR, 13CNMR, DEPT, 1H-1H COSY, HMQC and HMBC).
  
  
  RESULTS
  Eight compounds were obtained from the ethanolic extract of the rhizomes of this plant, dactylorhin B (I), loroglossin (II), dactylorhin A (III), militarine (IV), coelovirin A (V), gastrodin (VI), thymidine (VII) and quercetin-3,7-di-O-beta-D-glucopyranoside (VIII).
  
  
  CONCLUSIONS
  All the compounds were obtained from this plant and genus Coeloglossum for the first time. V named coelovirin A, is a new compound.
authors.affiliation: Institute of Chinese Materia Medica, Chinese Academy of Traditional Chinese Medicine, Beijing 100700, China.
authors.forename: Sheng-yang
authors.initials: SY
authors.lastname: Huang
authors.forename: Jian-gong
authors.initials: JG
authors.lastname: Shi
authors.forename: Yong-chun
authors.initials: YC
authors.lastname: Yang
authors.forename: Shi-lin
authors.initials: SL
authors.lastname: Hu
mesh_terms: D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D008968:Molecular Conformation; D015394:Molecular Structure; D029595:Orchidaceae / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D027343:Rhizome / Q000737:chemistry; D013386:Succinates / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D005960:Glucosides; D013386:Succinates; C479294:coelovirin A; C479293:dactylorhin B