Using c1ccc2nc(N3CC(Oc4nccnc4C4CCNCC4)C3)ccc2c1, COC(=O)Cl to produce COC(=O)N1CCC(c2nccnc2OC2CN(c3ccc4ccccc4n3)C2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.