2,2-Pyrrolidinedicarboxylic acid, 3-isopropyl-5-oxo-, diethyl ester 2445-91-2 5-22-07-00145 (Beilstein Handbook Reference) BRN 0486017 Diethyl 3-isopropyl-5-oxo-2,2-pyrrolidinedicarboxylate NSC 82080