You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(2-hydroxy-2-methylpropyl)-N-(3-methoxyphenyl)-3-(2H-pyrazolo[3,4-b]pyridin-3-yl)prop-2-enamide is the IUPAC name of a molecule. Please give its molecular formula.
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C20H22N4O3
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