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 ethyl 1-[2-[methyl-[2-(2-methyl-4-oxoquinazolin-3-yl)acetyl]amino]acetyl]piperidine-4-carboxylate .
user
C22H28N4O5
assistant