You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[3-[[(12aS)-8-methoxy-6-oxo-12a,13-dihydroindolo[2,1-c][1,4]benzodiazepin-9-yl]oxymethyl]-5-[[(12aS)-8-methoxy-6-oxo-11,12,12a,13-tetrahydroindolo[2,1-c][1,4]benzodiazepin-9-yl]oxymethyl]phenyl]-4-[[4-(3-aminooxypropylamino)-4-oxobutyl]disulfanyl]-4-methylpentanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C55H61N7O9S2
assistant