Using CCOC(=O)N1C(=O)c2ccccc2C1=O, N[C@@H](Cc1cccs1)C(=O)O to produce O=C(O)[C@H](Cc1cccs1)NN1C(=O)c2ccccc2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.