You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
9-(2-methoxyethyl)-12-(2-phenylacetyl)-2-oxa-9,12-diazatricyclo[9.2.1.03,8]tetradeca-3,5,7-trien-10-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H24N2O4
assistant