You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[3-[6-[[(6aS)-5-formyl-6-hydroxy-2,6a-dimethyl-11-oxo-6,7,8,9-tetrahydropyrrolo[2,1-c][1,4]benzodiazepin-3-yl]oxy]hexanoyl]-1-(chloromethyl)-2,6-dihydrobenzo[e]indol-5-yl] 4-methylpiperazine-1-carboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C40H48ClN5O7
assistant