Nirmatrelvir Impurity 33

Chemical Name: (1R,2S,5S)-N-((S)-1-Cyano-2-((S)-2-oxopyrrolidin-3-yl)ethyl)-3-((S)-3,3-dimethyl-2-(2,2,2-trifluoroacetamido)butanoyl)-6,6-dimethyl-N-(2,2,2-trifluoroacetyl)-3-azabicyclo[3.1.0]hexane-2-carboxamide