You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 7-[4-[(1-methyl-2-oxopyridin-4-yl)methyl]piperazin-1-yl]-3-propan-2-ylquinazolin-4-one .
user
C22H27N5O2
assistant