title: Two new furanoeremophilane sesquiterpenoids from Ligularia oligonema.
abstract: From the roots of Ligularia oligonema and an unidentified sample of Ligularia collected in Yunnan Province of China, two new sesquiterpenoids, 3beta-acetoxy-6beta-(2-methylbutyryloxy)furanoeremophilan-10beta-ol and 3beta-acetoxy-6beta-isobutyryloxyfuranoeremophilan-10beta-ol, were isolated. DNA sequencing showed that the unidentified sample was likely to be L. oligonema. In addition, the DNA data suggested that the chemical evolution among L. oligonema and related Ligularia species is rather complex.
authors.affiliation: Department of Chemistry, Ochanomizu University, Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan. nagano.hajime@ocha.ac.jp
authors.forename: Hajime
authors.initials: H
authors.lastname: Nagano
authors.forename: Mika
authors.initials: M
authors.lastname: Matsushima
authors.forename: Hiroka
authors.initials: H
authors.lastname: Yamada
authors.forename: Ryo
authors.initials: R
authors.lastname: Hanai
authors.forename: Xun
authors.initials: X
authors.lastname: Gong
authors.forename: Chiaki
authors.initials: C
authors.lastname: Kuroda
mesh_terms: D019659:Asteraceae / Q000737:chemistry* / Q000235:genetics; D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry; D012717:Sesquiterpenes / Q000302:isolation & purification*
chemical_list: C548272:3beta-acetoxy-6beta-(2-methylbutyryloxy)furanoeremophilan-10beta-ol; C548273:3beta-acetoxy-6beta-isobutyryloxyfuranoeremophilan-10beta-ol; D012717:Sesquiterpenes