Using OB(O)c1cn[nH]c1, COc1cccc(-c2c(Br)sc3nc(C)cc(NS(=O)(=O)C4CC4)c23)c1 to produce COc1cccc(-c2c(-c3cn[nH]c3)sc3nc(C)cc(NS(=O)(=O)C4CC4)c23)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.