You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule tert-butyl 4-[5-(5-cyano-1-oxo-2H-isoquinolin-3-yl)pyridin-2-yl]piperazine-1-carboxylate ?
user
C24H25N5O3
assistant