2,4-Pyrrolidinedione, 3-acetyl-5-((1S)-1-methylpropyl)-, (5S)- 2,4-Pyrrolidinedione, 3-acetyl-5-(1-methylpropyl)-, (5S-(5R*(R*)))- 2,4-Pyrrolidinedione, 3-acetyl-5-sec-butyl- 27778-66-1 3-Acetyl-2,4-dihydroxy-5-(1-methylpropyl)pyrrole 5-21-11-00555 (Beilstein Handbook Reference) BRN 0008485 L-Tenuazonic acid Pyrrole-2,4-diol, 3-acetyl-5-sec-butyl-