You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the compound with this IUPAC name methyl N-[(2S)-1-[(2S)-2-[7-[2-[(2S)-1-[(2S)-2-acetamido-3-methylbutanoyl]pyrrolidin-2-yl]-3H-benzo[e]benzimidazol-7-yl]-6H-imidazo[4,5-f]quinolin-2-yl]pyrrolidin-1-yl]-3-methyl-1-oxobutan-2-yl]carbamate ?
user
C43H49N9O5
assistant