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)-2-naphthalen-1-yl-N-[1-[3-[2-(piperazine-1-carbonyl)phenyl]phenyl]ethyl]acetamide .
user
C43H46N4O2
assistant