You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tert-butyl N-[1-[(E)-2-[5-(3-fluorophenyl)pyridin-2-yl]ethenyl]-2',5'-dioxospiro[1,3,3a,4,5,6,7,7a-octahydroindene-2,4'-imidazolidine]-5-yl]carbamate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C29H33FN4O4
assistant