Using O=C(O)c1cncc(OC(=O)N2CCC(Oc3ccc(OCc4ccccc4)cc3)CC2)c1 to produce O=C(O)c1cncc(OC(=O)N2CCC(Oc3ccc(O)cc3)CC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.