title: Metabolites from the fungus Cephalosporium sp. AL031.
abstract: A new pyrone derivative, 7, 9-dihydroxy-10-methyl-2H, 4aH, 6H, 10bH-pyrano[5,6-c][2]ben-zopyran-2,6-dione (1), was isolated from a culture broth of a strain of the fungus Cephalosporium sp. AL031, together with three known compounds, 3-acetyl-7-hydroxy-5-methoxyl-3H-isobenzofuran-1-one (2), vermopyrone (3), and 5-methylmellein (4). Their structures were elucidated by spectroscopic analysis including MS and 2D-NMR. Compounds 2, 3, and 4 are reported for the first time from fermentation broth of this fungus through the present study.
authors.affiliation: Department of Chemistry, Yunnan Normal University, Kunming 650092, China. yunmeibi@hotmail.com
authors.forename: Yun-Mei
authors.initials: YM
authors.lastname: Bi
authors.forename: Xu-Bin
authors.initials: XB
authors.lastname: Bi
authors.forename: A
authors.initials: A
authors.lastname: Fang
authors.forename: Qian-Rong
authors.initials: QR
authors.lastname: Zhao
mesh_terms: D000164:Acremonium / Q000378:metabolism*; D005285:Fermentation; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D011753:Pyrones / Q000737:chemistry / Q000302:isolation & purification* / Q000378:metabolism
chemical_list: D011753:Pyrones