Using NS(=O)(=O)c1ccc(B(O)O)cc1, CCOC(=O)c1nc(C)c(-c2ccc(OC)c(Br)c2)s1 to produce COc1ccc(-c2sc(C(=O)O)nc2C)cc1-c1ccc(S(N)(=O)=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.