You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named tert-butyl 3-[2-[2-[6-carbamoyl-9-[(E)-4-[5-carbamoyl-2-[(2-ethyl-5-methylpyrazole-3-carbonyl)amino]-7-(3-methoxypropoxy)benzimidazol-1-yl]but-2-enyl]-2-(2-ethyl-5-methylpyrazol-3-yl)pyrimido[4,5-b]indol-8-yl]oxyethoxy]ethoxy]propanoate by IUPAC nomenclature, provide its molecular formula.
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C51H64N12O10
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