Using CCn1c(-c2nc(Br)cnc2N)nc2cnccc21, CS(=O)(=O)c1cccc(B(O)O)c1 to produce CCn1c(-c2nc(-c3cccc(S(C)(=O)=O)c3)cnc2N)nc2cnccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.