Using N#C[Zn]C#N, COc1ccc(CN(c2ncns2)S(=O)(=O)c2ccc3c(Br)cccc3c2)c(OC)c1 to produce COc1ccc(CN(c2ncns2)S(=O)(=O)c2ccc3c(C#N)cccc3c2)c(OC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.