You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[(5R)-3-[2-[(3S)-7-fluoro-3-(trifluoromethyl)-3,5-dihydro-2H-1,4-benzoxazepin-4-yl]-2-oxoethyl]-2,4-dioxospiro[1,3-oxazolidine-5,1'-2,3-dihydroindene]-5'-yl]-3-methylurea is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H22F4N4O6
assistant