Using COc1ccc(CNc2nc(Cl)c(Cc3cn(S(=O)(=O)c4ccccc4)c4ncc(Cl)cc34)s2)cn1 to produce COc1ccc(CNc2nc(Cl)c(Cc3c[nH]c4ncc(Cl)cc34)s2)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.