Using COc1cc(OC)nc(S(C)(=O)=O)n1, CN(C)OC(=O)c1c(O)cccc1-c1ccc(Br)cc1 to produce COc1cc(OC)nc(Oc2cccc(-c3ccc(Br)cc3)c2C(=O)ON(C)C)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.