Using COC(=O)c1cccc2nc(Nc3c(C)cc(Cl)cc3Cl)n(CCO)c12 to produce COC(=O)c1cccc2nc3n(c12)CCN3c1c(C)cc(Cl)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.