Furanocoumarins from the root of Angelica dahurica.
Five furanocoumarins including a new one were isolated from the root of Angelica dahurica by repeated silica gel column chromatography. Their chemical structures were determined to be isoimperatorin (1), oxypeucedanin hydrate-3"-butyl ether (2), imperatorin (3), knidilin (4), and oxypeucedanin hydrate (5). This represents the first study in which the compound 2 has been isolated and identified. The long-range coupling (5J) in the 1H-NMR spectrum observed in the linear furanocoumarin skeleton was also investigated in detail.
Baek
N I
NI
Department of Life Sciences and Institute of Life Sciences, Kyunghee University, Suwon, Korea. nibaek@khu.ac.kr
Ahn
E M
EM
Kim
H Y
HY
Park
Y D
YD
D002681:China; D003374:Coumarins / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*
D003374:Coumarins