A novel isoindoline, porritoxin sulfonic acid, from Alternaria porri and the structure-phytotoxicity correlation of its related compounds.
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.
Horiuchi
Masayuki
M
Research Institute for Production Development, Kyoto, Japan. ma_horiuchi@rio.odn.ne.jp
Ohnishi
Keiichiro
K
Iwase
Noriyasu
N
Nakajima
Yoshikazu
Y
Tounai
Kenji
K
Yamashita
Masakazu
M
Yamada
Yasumasa
Y
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
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