You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[(2,4-difluorophenyl)methyl]-1-[[3-(2-fluorophenyl)-4,5-dihydro-1,2-oxazol-5-yl]methyl]-3-naphthalen-1-ylurea The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H22F3N3O2
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