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 (3R,5S)-1-benzyl-N-[(3,5-dimethylphenyl)methyl]-5-[(4-methylpiperazin-1-yl)methyl]piperidine-3-carboxamide .
user
C28H40N4O
assistant