Using CCOc1ccc(-c2nc(-c3cccc(C4CO4)n3)cs2)cc1OCC, [OH-] to produce CCOc1ccc(-c2nc(-c3cccc(C(O)CO)n3)cs2)cc1OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.