Using O=CC=Cc1ccc(Cl)cc1Cl, Clc1ccc(CN2CCNCC2)cc1 to produce Clc1ccc(CN2CCN(CC=Cc3ccc(Cl)cc3Cl)CC2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.