title: New sterols and triterpenoids from four edible mushrooms.
abstract: Four edible mushrooms, Panellus serotinus, Lepista nuda, Tricholoma matsutake and Naematoloma sublateritium, have been investigated chemically. Two new sterols, 5alpha,9alpha-epidioxy-(22E)-ergosta-7,22-diene-3beta,6alpha-diol (1) and 5alpha,9alpha-epidioxy-(22E)-ergosta-7,22-diene-3beta,6beta-diol (2), have been isolated from Panellus serotinus. Compound 2 was also isolated from Lepista nuda. A new sterol, 3beta,5alpha,9alpha,14beta-tetrahydroxy-(22E)-ergosta-7,22-dien-6-one (3), and compound 2 have been isolated from Tricholoma matsutake. Three new triterpenoids, sublateriols A-C (4-6), have been isolated from Naematoloma sublateritium. The structures of the new compounds were elucidated on the basis of their spectral data.
authors.affiliation: Tohoku Pharmaceutical University, Sendai, Miyagi, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Yaoita
authors.forename: K
authors.initials: K
authors.lastname: Matsuki
authors.forename: T
authors.initials: T
authors.lastname: Iijima
authors.forename: S
authors.initials: S
authors.lastname: Nakano
authors.forename: R
authors.initials: R
authors.lastname: Kakuda
authors.forename: K
authors.initials: K
authors.lastname: Machida
authors.forename: M
authors.initials: M
authors.lastname: Kikuchi
mesh_terms: D000363:Agaricales / Q000737:chemistry*; D007202:Indicators and Reagents; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008968:Molecular Conformation; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013261:Sterols / Q000737:chemistry* / Q000302:isolation & purification; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D007202:Indicators and Reagents; D013261:Sterols; D014315:Triterpenes