Using CN, CS(=O)(=O)Nc1cc2occ(Br)c(=O)c2cc1Oc1ccccc1 to produce CNc1coc2cc(NS(C)(=O)=O)c(Oc3ccccc3)cc2c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.