title: Microbial transformation of (+)-androsta-1 ,4-diene-3,17-dione by Cephalosporium aphidicola.
abstract: Fermentation of (+)-androsta-1,4-diene-3,17-dione ([structure: see text]) with Cephalosporium aphidicola for 8 days yielded oxidative and reductive metabolites, androst-4-ene-3,17-dione ([structure: see text]), 17beta-hydroxyandrosta-1,4-diene-3-one ([structure: see text]), 11alpha-hydroxyandrosta-1,4-diene-3,17-dione ([structure: see text]), 11alpha-hydroxyandrost-4-ene-3,17-dione ([structure: see text]), 11alpha,17beta-dihydroxyandrost-4-ene-3-one ([structure: see text]) and 11alpha,17beta-dihydroxyandrosta-1,4-diene-3-one ([structure: see text]). The fermentation of [structure: see text] with Fusarium lini also yielded metabolites [structure: see text]. The structures of these metabolites were elucidated on the basis of spectroscopic techniques.
authors.affiliation: HEJ Research Institute of Chemistry, International Center for Chemical Sciences, University of Karachi, Karachi-75270, Pakistan. hej@cyber.net.pk
authors.forename: M Iqbal
authors.initials: MI
authors.lastname: Choudhary
authors.forename: S Ghulam
authors.initials: SG
authors.lastname: Musharraf
authors.forename: Farzana
authors.initials: F
authors.lastname: Shaheen
authors.lastname: Atta-Ur-Rahman
mesh_terms: D000164:Acremonium / Q000378:metabolism*; D000730:Androstadienes / Q000737:chemistry* / Q000378:metabolism*; D002784:Cholesterol / Q000737:chemistry; D005285:Fermentation; D005670:Fusarium / Q000378:metabolism; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D012855:Sitosterols / Q000737:chemistry; D013055:Spectrophotometry, Infrared; D017550:Spectroscopy, Fourier Transform Infrared; D013237:Stereoisomerism
chemical_list: D000730:Androstadienes; D012855:Sitosterols; C006573:1,4-androstadiene-3,17-dione; C025473:gamma-sitosterol; D002784:Cholesterol