Using COC(=O)c1cc(S(=O)(=O)c2cccc(Br)c2)c(N)s1, O=Cc1cccc(B(O)O)c1 to produce COC(=O)c1cc(S(=O)(=O)c2cccc(-c3cccc(C=O)c3)c2)c(N)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.