You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name tert-butyl [(1S,10R)-5-(methylcarbamoyloxymethyl)-4-[(2-methylpropan-2-yl)oxycarbonyloxy]-2-oxo-3,9-diazatricyclo[4.3.1.03,10]dec-4-en-9-yl] carbonate into its molecular formula.
user
C21H31N3O9
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