Using CC(C)C(=O)Cl, COC(=O)c1ccc2ccn(Cc3cccc(N)c3)c(=O)c2c1 to produce COC(=O)c1ccc2ccn(Cc3cccc(NC(=O)C(C)C)c3)c(=O)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.