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 N'-(3-ethyl-4-oxoquinazolin-2-yl)-2-(3-methylbutanoyl)-3,4-dihydro-1H-isoquinoline-3-carbohydrazide ?
user
C25H29N5O3
assistant