You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-(2,3-dihydro-1,4-benzodioxin-6-yl)-N-(6-pyrrolidin-1-ylpyridin-3-yl)pyrazolidine-4-carboxamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H25N5O3
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