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-[[N'-methyl-N-[[4-(2-oxopyrrolidin-1-yl)phenyl]methyl]carbamimidoyl]amino]-N-(2,3,4-trifluorophenyl)acetamide;hydroiodide is given. What is its corresponding molecular formula?
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C21H23F3IN5O2
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