You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-[2-ethoxy-4-[(4R)-6-oxo-1-propan-2-yl-5,7-dihydro-4H-pyrazolo[3,4-b]pyridin-4-yl]phenoxy]acetamide into molecular formula.
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C19H24N4O4
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