You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by 5-butyl-3-[2-(3,4-dihydro-1H-isoquinolin-2-yl)-2-oxoethyl]-5-phenylimidazolidine-2,4-dione ?
user
C24H27N3O3
assistant