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-[2-(3-chlorophenyl)-2-pyrrolidin-1-ylethyl]-N'-methyl-4-(1-methylpyrazol-4-yl)-3-oxopiperazine-1-carboximidamide;hydroiodide into molecular formula.
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C22H31ClIN7O
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