Using CC(C)(C)c1cc(C2=NN=C(N)SC2)cc(C(C)(C)C)c1O, O=CC(=O)O to produce CC(C)(C)c1cc(-c2csc3nc(=O)cnn23)cc(C(C)(C)C)c1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.