You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance [3-(hydroxymethyl)pyrrolidin-1-yl]-[1-(4-methylphenyl)-4,5,6,7-tetrahydroindazol-3-yl]methanone .
user
C20H25N3O2
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