Two new prenylated coumarins from Spiranthes sinensis (Pers.) Ames.
Two new prenylated coumarins, sinensins A and B, have been isolated from the roots of Spiranthes sinensis (Pers.) Ames. Their structures were elucidated as 5-gamma, gamma-dimethylallyl-8-[2-(2,6-dihydroxyphenyl)-3-dimethyl-but-2-enyol]-umbelliferon (1) and 4,6-di(gamma, gamma-dimethylallyl)-8-lavandulyl-umbelliferon (2) on the basis of spectroscopic analysis.
Peng
Jin-Yong
JY
School of Pharmacy, Dalian Medical University, Dalian, China. jinyongpeng2005@163.com
Han
Xu
X
Xu
Li-Na
LN
Qi
Yan
Y
Xu
You-Wei
YW
Xu
Qi-Wei
QW
D003374:Coumarins / Q000737:chemistry / Q000302:isolation & purification*; D019906:Nuclear Magnetic Resonance, Biomolecular; D029595:Orchidaceae / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry; D054876:Prenylation; D021241:Spectrometry, Mass, Electrospray Ionization; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet
D003374:Coumarins