You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule N-[2-(1-ethylpiperidin-4-yl)ethyl]-3-(4-methoxyphenyl)-N'-methylpyrrolidine-1-carboximidamide;hydroiodide into molecular formula.
user
C22H37IN4O
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