chaetoglocin D
chaetoglocin d
A member of the class of  piperidones that is piperidine-2,4-dione substituted by an ethyl group at position 5 and a  1-hydroxyethylidene group at position 3 (the (3<i>E</i>,5<i>R</i>-stereoisomer).  It has been isolated from the solid-fermentation culture of <em>Chaetomium globosum</em>.