New sesquiterpene lactones from the aerial parts of Pseudoelephantopus spicatus.
Two new sesquiterpene lactones, spicatolide C (1) and spicatocadinanolide A (2), have been isolated along with the known piptocarphol isomers (3, 4) and one eudismane type sesquiterpene (5) from the EtOAc extract of the aerial parts of Pseudoelephantopus spicatus. The structures and the relative stereochemistries of the new metabolites were determined by spectroscopic methods.
Issa
Hamad Hassan
HH
Graduate Institute of Natural Products, Kaohsiung Medical University, Taiwan.
Chang
Sue-Ming
SM
Yang
Yu-Liang
YL
Chang
Fang-Rong
FR
Wu
Yang-Chang
YC
D019659:Asteraceae / Q000737:chemistry*; D007783:Lactones / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy / Q000379:methods / Q000592:standards; D008958:Models, Molecular; D008968:Molecular Conformation; D035261:Plant Components, Aerial / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D012015:Reference Standards; D012717:Sesquiterpenes / Q000737:chemistry* / Q000302:isolation & purification; D013237:Stereoisomerism
D007783:Lactones; D012717:Sesquiterpenes; C516735:spicatocadinanolide A; C516736:spicatolide C