Using Cn1c(-c2ccccc2Cl)nnc1C1(C2CCN(Cc3ccccc3)CC2)CCCC1 to produce Cn1c(-c2ccccc2Cl)nnc1C1(C2CCNCC2)CCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.