Using COC(=O)c1cc2c(o1)CN(C(=O)c1ccc(C(=O)c3ccccc3)cc1)CC2 to produce O=C(c1ccccc1)c1ccc(C(=O)N2CCc3cc(C(=O)O)oc3C2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.