Using [OH-], CCC(CC)c1ccc(Cl)c2nc(Nc3c(C)cc(Cl)cc3OC)n(CCO)c12 to produce CCC(CC)c1ccc(Cl)c2nc(Nc3c(C)cc(Cl)cc3OC)n(CC(=O)O)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.