You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
5-cyclopropyl-2-[3-(cyclopropylmethyl)-6,8-dihydro-5H-imidazo[1,5-a]pyrazin-7-yl]-7-methoxy-3H-quinazolin-4-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H25N5O2
assistant