You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule tert-butyl (2S,5S)-2-[6-[2-[2-[(2S,5S)-1-[(2S)-2-(methoxycarbonylamino)-2-(oxan-4-yl)acetyl]-5-methylpyrrolidin-2-yl]-3H-benzo[e]benzimidazol-7-yl]ethynyl]-1H-benzimidazol-2-yl]-5-methylpyrrolidine-1-carboxylate into molecular formula.
user
C44H51N7O6
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