Using CCOC(=O)c1cccc2c1C(=O)NC2=O, N[C@@H](CCC(=O)O)C(=O)O to produce O=C(O)CC[C@@H](C(=O)O)N1C(=O)c2ccccc2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.