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 2-[1'-(furan-3-carbonyl)spiro[1,2-dihydroindene-3,4'-piperidine]-1-yl]-N-propan-2-ylacetamide .
user
C23H28N2O3
assistant