You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Under IUPAC nomenclature, a molecule named tert-butyl 4-[2-(1-methyl-5-pyridin-4-ylpyrazol-3-yl)ethyl]piperidine-1-carboxylate is given. What is its corresponding molecular formula?
user
C21H30N4O2
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