You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 7-(cyclopropylmethyl)-3-(1-methylimidazol-4-yl)-2-(2-phenylacetyl)-2,7-diazaspiro[4.5]decan-6-one .
user
C24H30N4O2
assistant