You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by (1R,2S,5S)-3-[(2S,3R)-3-(1-bicyclo[1.1.1]pentanyloxy)-2-[(2,2,2-trifluoroacetyl)amino]butanoyl]-N-[(1S)-1-cyano-2-[(6R)-5-oxo-4-azaspiro[2.4]heptan-6-yl]ethyl]-6,6-dimethyl-3-azabicyclo[3.1.0]hexane-2-carboxamide ?
user
C28H36F3N5O5
assistant