Using COC(=O)CCc1cccc(-c2cccc(-c3cc(C(C)(C)S(C)(=O)=O)cc4cccnc34)c2)c1 to produce CC(C)(c1cc(-c2cccc(-c3cccc(CCC(=O)O)c3)c2)c2ncccc2c1)S(C)(=O)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.