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 2,4-diamino-6-[1-[8-methyl-4-oxo-3-(1H-pyrazol-4-yl)quinazolin-2-yl]propylamino]pyrimidine-5-carbonitrile .
user
C20H20N10O
assistant