Using COC(=O)c1ccc(S(=O)(=O)N(C(=O)OC(C)(C)C)c2nc3ccccn3c2C)cc1 to produce COC(=O)c1ccc(S(=O)(=O)Nc2nc3ccccn3c2C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.