title: Conjugated ketonic fatty acids from Pleurocybella porrigens.
abstract: Three novel conjugated long-chain fatty acids (1-3) were obtained from aqueous methanol extracts of Pleurocybella porrigens together with nine known constituents including (8E,10E)-7,12-dioxo-8,10-octadecadienoic acid (ostopanic acid) (4). The structures of the new fatty acids were characterized as (14RS)-(10E,12E)-14-hydroxy-9-oxo-10,12-octadecadienoic acid (1), (12RS)-(8E,10E)-12-hydroxy-7-oxo-8,10-octadecadienoic acid (2), and (10E,12E)-9,14-dioxo-10,12-octadecadienoic acid (3) by spectroscopic methods.
authors.affiliation: National Institute of Health Sciences, 1-18-1 Kamiyoga, Setagaya-ku, Tokyo 158-8501, Japan. amakura@nihs.go.jp
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Amakura
authors.forename: Kazunari
authors.initials: K
authors.lastname: Kondo
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Akiyama
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Ito
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Hatano
authors.forename: Takashi
authors.initials: T
authors.lastname: Yoshida
authors.forename: Tamio
authors.initials: T
authors.lastname: Maitani
mesh_terms: D000363:Agaricales / Q000737:chemistry*; D005227:Fatty Acids / Q000737:chemistry*; D007659:Ketones / Q000737:chemistry*; D000432:Methanol / Q000737:chemistry; D015394:Molecular Structure; D013057:Spectrum Analysis; D014867:Water / Q000737:chemistry
chemical_list: D005227:Fatty Acids; D007659:Ketones; D014867:Water; D000432:Methanol