You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(8S)-2-(methoxymethyl)-8-(4-methoxyphenyl)-3-phenyl-8,9-dihydro-7H-pyrazolo[1,5-a]quinazolin-6-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H23N3O3
assistant