You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 4-[5-(1-cyclobutylpiperidin-4-yl)oxyspiro[1,3-dihydroindene-2,4'-piperidine]-1'-yl]-N-methylbenzamide into its molecular formula.
user
C30H39N3O2
assistant