You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
tert-butyl 2-[5-[3-[2-[1-[(2-methylpropan-2-yl)oxycarbonyl]pyrrolidin-2-yl]-1H-imidazol-5-yl]-6-phenyl-6H-indolo[1,2-c][1,3]benzoxazin-10-yl]-1H-imidazol-2-yl]pyrrolidine-1-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C45H49N7O5
assistant