Using COC(=O)CCCCN, CC(C)(C)OC(=O)N[C@@H](Cc1ccccc1)C(=O)O to produce COC(=O)CCCCNC(=O)[C@H](Cc1ccccc1)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.