Using CCOC(=O)C(=O)NNC(=O)c1nc(-c2ccc(S(=O)(=O)C(C)C)cc2)cnc1N to produce CCOC(=O)c1nnc(-c2nc(-c3ccc(S(=O)(=O)C(C)C)cc3)cnc2N)o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.