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 1-[3-[2-[(3S)-1,3-dimethyl-2-oxopyrrolidin-3-yl]ethynyl]phenyl]pyrazolo[3,4-c]pyridine-3-carboxamide into molecular formula.
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C21H19N5O2
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