Using COc1cc(-c2cc3ccccc3n2C(=O)OC(C)(C)C)c2c(c1OS(C)(=O)=O)CNC2=O to produce COc1cc(-c2cc3ccccc3[nH]2)c2c(c1OS(C)(=O)=O)CNC2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.