title: A novel isoindoline, porritoxin sulfonic acid, from Alternaria porri and the structure-phytotoxicity correlation of its related compounds.
abstract: Novel zinniol-related compound 3, named porritoxin sulfonic acid, with an isoindoline skeleton was isolated from the culture liquid of Alternaria porri. The structure was determined to be 2-(2"-sulfoethyl)-4-methoxy-5-methyl-6-(3'-methyl-2'-butenyloxy)-2,3-dihydro-1H-isoindol-1-one. The phytotoxic activities of three isoindolines (1-3) were evaluated in a seedling-growth assay against stone leek and lettuce.
authors.affiliation: Research Institute for Production Development, Kyoto, Japan. ma_horiuchi@rio.odn.ne.jp
authors.forename: Masayuki
authors.initials: M
authors.lastname: Horiuchi
authors.forename: Keiichiro
authors.initials: K
authors.lastname: Ohnishi
authors.forename: Noriyasu
authors.initials: N
authors.lastname: Iwase
authors.forename: Yoshikazu
authors.initials: Y
authors.lastname: Nakajima
authors.forename: Kenji
authors.initials: K
authors.lastname: Tounai
authors.forename: Masakazu
authors.initials: M
authors.lastname: Yamashita
authors.forename: Yasumasa
authors.initials: Y
authors.lastname: Yamada
mesh_terms: D000528:Alternaria / Q000737:chemistry*; D007211:Indoles / Q000737:chemistry* / Q000302:isolation & purification / Q000633:toxicity; D054833:Isoindoles; D018545:Lactuca / Q000187:drug effects / Q000254:growth & development; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D009183:Mycotoxins / Q000737:chemistry* / Q000302:isolation & purification / Q000633:toxicity; D012639:Seeds / Q000187:drug effects / Q000254:growth & development; D013329:Structure-Activity Relationship; D013451:Sulfonic Acids / Q000737:chemistry* / Q000302:isolation & purification / Q000633:toxicity
chemical_list: C485582:2-(2''-sulfoethyl)-4-methoxy-5-methyl-6-(3'-methyl-2'-butenyloxy)-2,3-dihydro-1H-isoindol-1-one; D007211:Indoles; D054833:Isoindoles; D009183:Mycotoxins; D013451:Sulfonic Acids