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