You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 2-butyl-1-N,1-N-dimethyl-4-N-phenylbenzene-1,4-diamine into SMILES representation.
user
CCCCC1=CC(NC2=CC=CC=C2)=CC=C1N(C)C
assistant