Using CCO, C#C[C@H](CC(=O)O)NC(=O)[C@@H]1CCCN(C(=O)CCC2CCNCC2)C1 to produce C#C[C@H](CC(=O)OCC)N[C@@H]1CCCN(C(=O)CCC2CCNCC2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.