cercosporin
cercosporin
An organic heterohexacyclic compound that is perylo[1,12-<em>def</em>][1,3]dioxepine-6,11-dione substituted by hydroxy groups at positions 5 and 12, by methoxy groups at positions 7 and 10, and by 2-hydroxypropyl groups at positions 8 and 9 (the <i>R</i>,<i>R</i>-stereoisomer). It is a phytotoxin which was first isolated from the pathogenic soybean fungus, <em>Cercospora kikuchii</em> and later found in multiple members of the genus <em>Cercospora</em>.