You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 1-[(2R,5R)-2-[4-[4-[4-[2-[(2R,5R)-1-acetyl-5-methylpyrrolidin-2-yl]-1H-imidazol-5-yl]phenyl]phenyl]-3H-pyrrol-2-yl]-5-methylpyrrolidin-1-yl]ethanone by IUPAC nomenclature, provide its molecular formula.
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C33H37N5O2
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