You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-[5-cyclobutyl-3-[2-[(2S)-2-hydroxy-7-azabicyclo[2.2.1]heptan-7-yl]acetyl]-2-methylpyrrol-1-yl]benzonitrile is the IUPAC name of a molecule. Please give its molecular formula.
user
C24H27N3O2
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