Using COc1ccc(S(=O)(=O)NC(=O)c2ccc(CCBr)cc2)cc1 to produce C=Cc1ccc(C(=O)NS(=O)(=O)c2ccc(OC)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.