You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5S)-2-[3-(3-chloro-1H-1,2,4-triazol-5-yl)propanoyl]-7-propyl-2,7-diazaspiro[4.5]decan-6-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C16H24ClN5O2
assistant