[Studies on the chemical constituents of Coeloglossum viride (L.) Hartm. var. bracteatum (Willd.) Richter].
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.
Huang
Sheng-yang
SY
Institute of Chinese Materia Medica, Chinese Academy of Traditional Chinese Medicine, Beijing 100700, China.
Shi
Jian-gong
JG
Yang
Yong-chun
YC
Hu
Shi-lin
SL
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*
D005960:Glucosides; D013386:Succinates; C479294:coelovirin A; C479293:dactylorhin B