英文别名3-Azabicyclo[3.1.0]hexane-2-carboxylic acid, 3-[(2S)-3,3-dimethyl-1-oxo-2-[(2,2,2-trifluoroacetyl)amino]butyl]-6,6-dimethyl-, (1R,2S,5S)-; (1R,2S,5S)-6,6-dimethyl-3-[3-methyl-N-(trifluoroacetyl)-L-valyl]-3-azabicyclo[3.1.0]hexane-2-carboxylic acid; Nirmatrelvir Impurity 3; Nirmatrelvir Impurity 12