1-(1-(1H-Benzimidazol-1-yl)ethyl)-2-pyrrolidinone 1-(2-Oxopyrrolidin-1-yl)-1-(benzimidazol-1-yl)ethane 149775-62-2 2-Pyrrolidinone, 1-(1-(1H-benzimidazol-1-yl)ethyl)-