dupracetam

1,2-Bis[(2-oxo-1-pyrrolidinyl)acetyl]hydrazine

2-(2-oxopyrrolidin-1-yl)-N'-[2-(2-oxopyrrolidin-1-yl)acetyl]acetohydrazide

2-(2-ketopyrrolidin-1-yl)-N'-[2-(2-ketopyrrolidin-1-yl)acetyl]acetohydrazide

2-(2-oxopyrrolidin-1-yl)-N'-[2-(2-oxopyrrolidin-1-yl)ethanoyl]ethanehydrazide