You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 1-[2-(3,4-dihydro-2H-quinolin-1-yl)-2-oxoethyl]-3-(pyridin-4-ylmethyl)pyrido[3,2-d]pyrimidine-2,4-dione by IUPAC nomenclature, provide its molecular formula.
user
C24H21N5O3
assistant