You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the SMILES representation for (2S)-2-amino-1-[4-(3-chlorophenyl)piperazin-1-yl]butan-1-one ?
user
CCC(N)C(=O)N1CCN(C2=CC=CC(Cl)=C2)CC1
assistant