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 [(2R)-1-(3-chloro-4-cyanoanilino)-1-oxopropan-2-yl] 2-(4-oxoquinazolin-3-yl)acetate .
user
C20H15ClN4O4
assistant