Isolation and identification of a new dicoumarin from the roots of Daphne genkwa.
OBJECTIVE
To investigate the chemical constituents of the roots of Daphne genkwa.


METHODS
Silica gel and Sephadex LH-20 column chromatographic techniques were employed for the isolation and purification. The structure was elucidated by a combination of spectroscopic analyses.


RESULTS
A new dicoumarin named isodaphnoretin was isolated and the structure was established as 7-hydroxy-6-methoxy-4-[(2-oxo-2H-1-benzopyran-7-yl)-oxyl]-2H-1-benzopyran-2-one.


CONCLUSIONS
Isodaphnoretin is a new compound.
Zheng
Wei-fa
WF
Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, Xuzhou Normal University, Xuzhou 221116, China. njzheng2004@126.com
Shi
Feng
F
D003374:Coumarins / Q000737:chemistry / Q000302:isolation & purification*; D032364:Daphne / Q000737:chemistry*; D008968:Molecular Conformation; D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
D003374:Coumarins; C506132:isodaphnoretin