英文别名Brivaracetam Impurity P; (3R)-N-[(2S)-1-amino-1-oxobutan-2-yl]-3-(hydroxymethyl)hexanamide; Hexanamide, N-[(1S)-1-(aminocarbonyl)propyl]-3-(hydroxymethyl)-, (3R)-; Brivaracetam Impurity 22; (R)-3-hydroxymethylhexanoic acid [(S)-1-carbamoylpropyl]amide; Buvacitan impurity 22