Using COc1ccccc1-c1cnc2c(n1)c(-c1ccccc1OC)cn2S(=O)(=O)c1ccc(C)cc1 to produce COc1ccccc1-c1cnc2[nH]cc(-c3ccccc3OC)c2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.