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 1'-propanoylspiro[1,9,12,13-tetrazabicyclo[9.2.1]tetradeca-11(14),12-diene-7,4'-piperidine]-8-one .
user
C17H27N5O2
assistant