103765-01-1

UCB-L 060 Levetiracetam-4 R-(+)-ETIRACETAM R-(+)-LevetiracetaM levetiraccetam R-isomer LevetiracetaM IMpurity D Levetiracetam EP Impurity D Levetiracetam Impurity enantiomer (R)-2-(2-oxopyrrolidin-1- yl)butanamide (R)-2-(2-OXO-PYRROLIDIN-1-YL)-BUTYRAMIDE (αR)-α-Ethyl-2-oxo-1-pyrrolidineacetamide (R)-alpha-Ethyl-2-oxo-1-pyrrolidineacetamide 1-PYRROLIDINEACETAMIDE, A-ETHYL-2-OXO-, (AR)- 1-Pyrrolidineacetamide, α-ethyl-2-oxo-, (αR)- 1-Pyrrolidineacetamide, alpha-ethyl-2-oxo-, (R)- Levetiracetam Impurity 4（Levetiracetam EP Impurity D） Levetiracetam impurity 5/Levetiracetam EP Impurity D/(R)-Etiracetam/Levetiracetam R-Isomer/(R)-2-(2-oxopyrrolidin-1- yl)butanamide