Using NC1CCC(=O)NC1=O, COc1ccccc1Oc1cccc(C(=O)O)c1C(=O)O to produce COc1ccccc1Oc1cccc2c1C(=O)N(C1CCC(=O)NC1=O)C2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.