You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[(1R,1aS,6bS)-5-[(7-oxo-6,8-dihydro-5H-1,8-naphthyridin-4-yl)oxy]-1a,6b-dihydro-1H-cyclopropa[b][1]benzofuran-1-yl]-3-[2-(trifluoromethoxy)phenyl]urea is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H19F3N4O5
assistant