(R)-2-(2-oxopyrrolidin-1-yl)butanamide; (R)-alpha-Ethyl-2-oxo-1-pyrrolidineacetamide; (2R)-2-(2-oxopyrrolidin-1-yl)butanamide; etiracetam, R-isomer; (R)-2-(2-Oxopyrrolizino)butyramide
(R)-2-(2-oxopyrrolidin-1-yl)butanamide; (R)-alpha-Ethyl-2-oxo-1-pyrrolidineacetamide; (2R)-2-(2-oxopyrrolidin-1-yl)butanamide; etiracetam, R-isomer; (R)-2-(2-Oxopyrrolizino)butyramide