Using COC(=O)C1(NO)CCN(OC)CC1, Cc1cc(Cl)cc(C)c1CC(=O)Cl to produce COC(=O)C1(N(O)C(=O)Cc2c(C)cc(Cl)cc2C)CCN(OC)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.