title: Two new eremophilenolides from Ligularia lapathifolia.
abstract: From the roots of Ligularia lapathifolia two new eremophilane-type sesquiterpenes have been isolated. Their structures were established as 3beta-angeloyloxy-8beta-hydroxy-6alpha,15beta-epoxy-eremophil-7(11)-en-12,8alpha-olide (1) and 8betaH-eremophil-3,7(11)-dien-12,8alpha (15,6alpha)-diolide (2) by spectroscopic methods including 2D NMR experiments.
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
authors.forename: Dong-Qing
authors.initials: DQ
authors.lastname: Fei
authors.forename: Yi-Feng
authors.initials: YF
authors.lastname: Han
authors.forename: Gang
authors.initials: G
authors.lastname: Wu
authors.forename: Kun
authors.initials: K
authors.lastname: Gao
mesh_terms: D019659:Asteraceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry; D012717:Sesquiterpenes / Q000737:chemistry* / Q000302:isolation & purification*; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification*
chemical_list: C511907:3beta-angeloyloxy-8beta-hydroxy-6alpha,15beta-epoxy-eremophil-7(11)-en-12,8alpha-olide; C511908:8betaH-eremophil-3,7(11)-dien-12,8alpha (15,6alpha)-diolide; D012717:Sesquiterpenes; D014315:Triterpenes