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-[(3-cyanophenyl)methyl]-1-ethyl-3-[[4-methyl-2-(oxolan-3-yloxy)phenyl]methyl]guanidine is given. What is its corresponding molecular formula?
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C23H28N4O2
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