Using COC(=O)c1ccc(C(=O)Nc2cc(-c3cccs3)ccc2NC(=O)OC(C)(C)C)cc1 to produce CC(C)(C)OC(=O)Nc1ccc(-c2cccs2)cc1NC(=O)c1ccc(CO)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.