You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (1S,8R)-9-[[3-(3-piperidin-1-ylpropoxy)phenyl]methyl]-2-oxa-5,9-diazatricyclo[6.3.0.01,5]undecan-6-one by IUPAC nomenclature, provide its molecular formula.
user
C23H33N3O3
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