Using O=[N+]([O-])c1cc(Br)c(Br)c([N+](=O)[O-])c1, N#C[S-] to produce N#CSc1c(Br)cc([N+](=O)[O-])cc1[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.