You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named 1-(4-methylpiperazin-1-yl)-2-[(1R)-1'-(6-methylpyridine-2-carbonyl)spiro[1,2-dihydroindene-3,4'-piperidine]-1-yl]ethanone is given. What is its corresponding molecular formula?
user
C27H34N4O2
assistant