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 9-(2-phenylethyl)-1-[4-(1,2,4-triazol-1-yl)butanoyl]-1,9-diazaspiro[4.5]decan-10-one .
user
C22H29N5O2
assistant