You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named N-[1-[(2R)-3-(4-chlorophenyl)-2-[[(2R)-1-(2-methylpropyl)pyrrolidin-2-yl]methylamino]propanoyl]-4-cyclohexylpiperidin-4-yl]-2-methylpropanamide by IUPAC nomenclature, provide its molecular formula.
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C33H53ClN4O2
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