Sulfonated guaianolides from Saussurea lappa.
Two new guaiane-type sesquiterpene lactones with an unusual sulfonic acid group, sulfocostunolide A (1) and sulfocostunolide B (2), were isolated from the roots of Saussurea lappa. Their structures were elucidated on the basis of extensive spectroscopic analysis.
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China.
Fei
F
Wang
Zheng-Hong
ZH
Xie
Yuan
Y
Gao
Yao
Y
Xu
Xue-Lian
XL
Cheng
Ji-Kai
JK
Liu
D002855:Chromatography, Thin Layer; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D018517:Plant Roots / Q000737:chemistry; D030441:Saussurea / Q000737:chemistry*; D012717:Sesquiterpenes / Q000737:chemistry* / Q000302:isolation & purification; D045789:Sesquiterpenes, Guaiane / Q000737:chemistry* / Q000302:isolation & purification; D021241:Spectrometry, Mass, Electrospray Ionization; D013055:Spectrophotometry, Infrared
D012717:Sesquiterpenes; D045789:Sesquiterpenes, Guaiane; C530119:sulfocostunolide A; C530121:sulfocostunolide B