You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[4-(2-fluoro-4-methylphenoxy)-3-(2-methyl-1-oxoisoquinolin-4-yl)phenyl]-N-methylprop-2-enamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H23FN2O3
assistant