You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-[8-(5-carbazol-9-yl-2-isocyanophenyl)-4a,9b-dihydrodibenzofuran-2-yl]-4,4,5,5-tetramethyl-1,3,2-dioxazolidine is the IUPAC name of a molecule. Please give its molecular formula.
user
C37H31N3O3
assistant