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 (3S)-3-[[3-(4-methylpiperazin-1-yl)pyridin-2-yl]methyl]-1-[4-(oxan-4-yl)phenyl]piperidin-2-one .
user
C27H36N4O2
assistant