1-(4-(3a,4,7,7a-Tetrahydro-2-isoindolinyl)-2-butynyl)-2-pyrrolidinone 14053-09-9 2-Pyrrolidinone, 1-(4-(3a,4,7,7a-tetrahydro-2-isoindolinyl)-2-butynyl)- 5-21-06-00371 (Beilstein Handbook Reference) BRN 1476764