You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl N-[1-[(3aS,7aS)-2-[6-[7-[[(2S)-1-(3-methoxybutanoyl)-2,3,3a,4,5,6,7,7a-octahydroindole-2-carbonyl]amino]-9,9-dimethylfluoren-2-yl]-1H-benzimidazol-2-yl]-2,3,3a,4,5,6,7,7a-octahydroindol-1-yl]-3-methoxy-1-oxopropan-2-yl]carbamate;methyl carbamate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C52H67N7O9
assistant