[A new dicoumarin from stem bark of Wikstroemia indica].
OBJECTIVE
To study the chemical constituents form stem bark of Wikstroemia indica.


METHODS
The constituents were isolated by column chromatography on silica gel and ODS, and identified by spectroscopic methods.


RESULTS
Seven compounds, daphnoretin (I), tricin (II), daucosterol (III), beta-sitosterol (IV), umbelliferone (V), genkwanin (VI), and 6'-hydroxy, 7-O-7'-dicoumarin (VII), were isolated and identified.


CONCLUSIONS
Compound VII was a new compound and compounds III, V were isolated from this plant for the first time.
Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing.
Li-dong
LD
Geng
Cun
C
Zhang
Yong-qing
YQ
Xiao
D003374:Coumarins / Q000737:chemistry* / Q000302:isolation & purification*; D015394:Molecular Structure; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification; D014468:Umbelliferones / Q000737:chemistry / Q000302:isolation & purification; D032365:Wikstroemia / Q000737:chemistry*
C511313:6'-hydroxy-7-O-7'-dicoumarin; D003374:Coumarins; D012855:Sitosterols; D014468:Umbelliferones; C031477:7-hydroxycoumarin; C011015:lyoniside