You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule N-[1-[[(E,3S)-6-[2-[3-(dibutylamino)propylcarbamoyl]pyrrolidin-1-yl]-2,5-dimethyl-6-oxohex-4-en-3-yl]-methylamino]-3,3-dimethyl-1-oxobutan-2-yl]-1-propan-2-ylpiperidine-2-carboxamide into molecular formula.
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C40H74N6O4
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