You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named 2-methyl-N-[1-[1-[(E)-3-phenylprop-2-enyl]benzimidazol-2-yl]ethyl]prop-2-enamide is given. What is its corresponding molecular formula?
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C22H23N3O
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