Using CCc1ccc(C(=O)N2CCC3(CC2)Oc2cc(C(=O)OC)ccc2-n2cccc23)cc1OC to produce CCc1ccc(C(=O)N2CCC3(CC2)Oc2cc(C(=O)O)ccc2-n2cccc23)cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.