You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Name the molecular formula for the molecule established as 2-[4-(1H-pyrazol-4-yl)butanoyl]-2,8-diazaspiro[4.5]decane-3-carboxylic acid using the IUPAC nomenclature.
user
C16H24N4O3
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