You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule tert-butyl (3S)-3-[[4-[(3,4-dichlorophenyl)carbamoyl]piperazin-1-yl]methyl]piperidine-1-carboxylate;N-(3,4-dichlorophenyl)-4-[[(3R)-piperidin-3-yl]methyl]piperazine-1-carboxamide .
user
C39H56Cl4N8O4
assistant