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 (E)-N-[3-(4-amino-3-iodopyrazolo[3,4-d]pyrimidin-1-yl)phenyl]-4-[cyclopropyl(methyl)amino]-N-methylbut-2-enamide into molecular formula.
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C20H22IN7O
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