You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[1-[3-[5,7-difluoro-2-(4-fluorophenyl)-1H-indol-3-yl]cyclobutyl]ethenyl]pyrimidine-2-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H19F3N4O
assistant