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 N-[(1-benzylpiperidin-4-yl)methyl]-2-[(3S,8E,11S)-5,12-dioxo-3-phenyl-1-oxa-4-azacyclododec-8-en-11-yl]acetamide .
user
C31H39N3O4
assistant