title: 24-Ethyl,24-methyl-29-nor-lanostanes from leaves of Freycinetia formosana.
abstract: Two new 24-ethyl,24-methyl-29-nor-lanostanes (1, 2) were isolated from the MeOH extract of leaves of Freycinetia formosana (Pandanaceae). Their structures were elucidated based on spectroscopic evidence.
authors.affiliation: Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan. inada@pharm.setsunan.ac.jp
authors.forename: Akira
authors.initials: A
authors.lastname: Inada
authors.forename: Chiharu
authors.initials: C
authors.lastname: Morimoto
authors.forename: Tomomi
authors.initials: T
authors.lastname: Yoshikawa
authors.forename: Yuka
authors.initials: Y
authors.lastname: Inatomi
authors.forename: Hiroko
authors.initials: H
authors.lastname: Murata
mesh_terms: D007810:Lanosterol / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D008968:Molecular Conformation; D031673:Pandanaceae / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification*; D018515:Plant Leaves / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: C546255:24-ethyl,24-methyl-29-nor-5alpha-lanosta-4(28),7,25-trien-3beta-ol; C546256:24-ethyl,24-methyl-29-nor-5alpha-lanosta-4(28),7-dien-3beta-ol; D010936:Plant Extracts; D007810:Lanosterol