You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-(3,4-difluorophenyl)-3-[(1S,2S,3S)-2-[2-hydroxy-5-[(7-oxo-6,8-dihydro-5H-1,8-naphthyridin-4-yl)oxy]phenyl]-1-bicyclo[1.1.0]butanyl]urea The above is the IUPAC name of a molecule. Write its molecular formula.
user
C25H20F2N4O4
assistant