Using COc1cc(Cl)ccc1C(=O)NCCN1CCN(Cc2ccc(Cl)c(Cl)c2)CC1 to produce O=C(NCCN1CCN(Cc2ccc(Cl)c(Cl)c2)CC1)c1ccc(Cl)cc1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.