Using O=C(O)c1ccc(C(=O)O)s1, O=C(OCc1ccccc1)[C@H]1CCCN1 to produce O=C(OCc1ccccc1)[C@H]1CCCN1C(=O)c1ccc(C(=O)N2CCC[C@@H]2C(=O)OCc2ccccc2)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.