title: Blazeispirols B, C, E and F, des-A-ergostane-type compounds, from the cultured mycelia of the fungus Agaricus blazei.
abstract: Four new des-A-ergostane derivatives including blazeispirols B, C, E and F were isolated from the cultured mycelia of fungus Agaricus blazei Murill and were established to be (20S, 22R, 23R, 24S)-14beta,22: 22,25-diepoxy-5-methoxy-des-A-ergosta-5,7,9,11-tetraen-23-ol; (20S, 22S, 23R, 24S)-14beta,22: 22,25-diepoxy-5-methoxy-des-A-ergosta-5,7,9-trien-23-ol; (20S, 22S, 23R, 24S)-14beta, 22: 22, 25-diepoxy-5-methoxy-des-A-ergosta-5,7,9,11-tetraene-19,23-diol and (20S, 22S, 23R, 24S)-14beta,22: 22,25-diepoxy-des-A-ergosta-5,7,9-triene-5,23-diol by comparison of extensive 1D and 2D NMR spectral data with that of blazeispirol A.
authors.affiliation: School of Pharmaceutical Sciences, Kitasato University, Minato-ku, 108-8641, Tokyo, Japan. hirotanim@pharm.kitasato-u.ac.jp
authors.forename: Masao
authors.initials: M
authors.lastname: Hirotani
authors.forename: Kou
authors.initials: K
authors.lastname: Sai
authors.forename: Seiko
authors.initials: S
authors.lastname: Hirotani
authors.forename: Takafumi
authors.initials: T
authors.lastname: Yoshikawa
mesh_terms: D000364:Agaricus / Q000737:chemistry*; D004875:Ergosterol / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D013055:Spectrophotometry, Infrared
chemical_list: C015190:ergostane; D004875:Ergosterol