You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(12aS)-9-[[3-[[(12aS)-8-methoxy-6-oxo-12a,13-dihydroindolo[2,1-c][1,4]benzodiazepin-9-yl]oxymethyl]-5-[methyl(4-oxohexyl)amino]phenyl]methoxy]-8-methoxy-12a,13-dihydro-11H-indolo[2,1-c][1,4]benzodiazepine-6,12-dione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C49H47N5O8
assistant