Using Nc1ccc(C(=O)Nc2cc(Oc3ccccc3)ccc2C(=O)O)cc1, COC1CCC(OC)O1 to produce O=C(Nc1cc(Oc2ccccc2)ccc1C(=O)O)c1ccc(-n2cccc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.