title: Perylene derivatives produced by Alternaria alternata, an endophytic fungus isolated from Laurencia species.
abstract: Two new perylene derivatives, 7-epi-8-hydroxyaltertoxin I (1) and 6-epi-stemphytriol (2), along with two known compounds stemphyperylenol (3) and altertoxin I (4) were isolated from Alternaria alternata, a marine endophytic fungus derived from an unidentified algal species of the genus Laurencia. Structures of compounds 1-4 were determined on the basis of detailed spectroscopic analysis, as well as by comparison with literature reports. The antimicrobial activities of compounds 1 and 3 against Staphylococcus aureus, Escherichia coli, and Aspergillus niger were evaluated; neither showed obvious activity.
authors.affiliation: Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
authors.forename: Shu-Shan
authors.initials: SS
authors.lastname: Gao
authors.forename: Xiao-Ming
authors.initials: XM
authors.lastname: Li
authors.forename: Bin-Gui
authors.initials: BG
authors.lastname: Wang
mesh_terms: D000528:Alternaria / Q000737:chemistry*; D000900:Anti-Bacterial Agents / Q000096:biosynthesis* / Q000737:chemistry / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects; D002851:Chromatography, High Pressure Liquid; D002855:Chromatography, Thin Layer; D005285:Fermentation; D005658:Fungi / Q000187:drug effects; D044722:Laurencia / Q000382:microbiology*; D009682:Magnetic Resonance Spectroscopy; D008826:Microbial Sensitivity Tests; D008968:Molecular Conformation; D010569:Perylene / Q000031:analogs & derivatives* / Q000737:chemistry / Q000494:pharmacology; D021241:Spectrometry, Mass, Electrospray Ionization; D013055:Spectrophotometry, Infrared
chemical_list: C546644:7-epi-8-hydroxyaltertoxin I; D000900:Anti-Bacterial Agents; D010569:Perylene