Sesquiterpenes, nortriterpenes and other constituents from Ligularia tongolensis.
Two new eremophilane-type sesquiterpenes, 3beta-(2'-methylbutanoyloxy)-8betaH-eremophil-7(11)-ene-12,8alpha-(14,6alpha)-diolide (1) and 8betaH-eremophil-3,7(11)-diene-12,8alpha(14,6alpha)-diolide (2), and two new norursane-type triterpenes, 2alpha,3beta,19alpha-trihydroxy-28-norurs-12-ene (7) and 2alpha,3alpha,19alpha-trihydroxy-28-norurs-12-ene (8), were isolated from the roots of Ligularia tongolensis, together with nine known compounds. The structures of the new compounds were elucidated by spectroscopic methods.
Han
Yi Feng
YF
State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, PR China.
Pan
Jing
J
Gao
Kun
K
Jia
Zhong Jian
ZJ
D019659:Asteraceae / Q000737:chemistry* / Q000145:classification; D002247:Carbon Isotopes; D004353:Drug Evaluation, Preclinical; D009682:Magnetic Resonance Spectroscopy / Q000379:methods / Q000592:standards; D008968:Molecular Conformation; D018517:Plant Roots / Q000737:chemistry; D011522:Protons; D012015:Reference Standards; D012717:Sesquiterpenes / Q000737:chemistry* / Q000302:isolation & purification; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
C507502:2alpha,3beta,19alpha-trihydroxy-28-norurs-12-ene; C507500:3beta-(2'-methylbutanoyloxy)-8betaH-eremophil-7(11)-ene-12,8alpha-(14,6alpha)diolide; C507501:8betaH-eremophil-3,7(11)-diene-12,8alpha(14,6alpha)diolide; D002247:Carbon Isotopes; D011522:Protons; D012717:Sesquiterpenes; D014315:Triterpenes