title: Alkaloids from the mushroom Pseudobaeospora pyrifera, pyriferines A-C.
abstract: Three novel alkaloids (1-3), named pyriferines A-C, were isolated from fruiting bodies of Pseudobaeospora pyrifera. They possess an unusual eight-membered N/O-acetal ring, derived from L-glutamic acid, that is connected to an enolized 1,3-diketo moiety. The structures were determined by spectroscopic methods, and the absolute configuration of the glutamic acid moiety was established using GC-MS after Mosher-type derivatization.
authors.affiliation: Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle/Saale, Germany.
authors.forename: Dang Ngoc
authors.initials: DN
authors.lastname: Quang
authors.forename: Peter
authors.initials: P
authors.lastname: Spiteller
authors.forename: Andrea
authors.initials: A
authors.lastname: Porzel
authors.forename: Jürgen
authors.initials: J
authors.lastname: Schmidt
authors.forename: Torsten
authors.initials: T
authors.lastname: Geissler
authors.forename: Norbert
authors.initials: N
authors.lastname: Arnold
authors.forename: Ludger
authors.initials: L
authors.lastname: Wessjohann
mesh_terms: D000363:Agaricales / Q000737:chemistry*; D000470:Alkaloids / Q000737:chemistry* / Q000302:isolation & purification*; D000818:Animals; D008401:Gas Chromatography-Mass Spectrometry; D005858:Germany; D018698:Glutamic Acid / Q000737:chemistry; D015394:Molecular Structure
chemical_list: D000470:Alkaloids; C532709:pyriferine A; C532710:pyriferine B; C532711:pyriferine C; D018698:Glutamic Acid