Using CCCC[Sn](CCCC)(CCCC)c1nccs1, N#Cc1csc([N+](=O)[O-])c1Br to produce N#Cc1csc([N+](=O)[O-])c1-c1nccs1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.