Using OCCN1CCNCC1, O=Cc1cc2c(N3CCOCC3)nc(Cl)nc2s1 to produce OCCN1CCN(Cc2cc3c(N4CCOCC4)nc(Cl)nc3s2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.