Using COC(=O)c1ccc(C=O)cc1, CC(C)(C)OC(=O)N1CCCC1CN to produce COC(=O)c1ccc(CNCC2CCCN2C(=O)OC(C)(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.