Using N#Cc1csc([N+](=O)[O-])c1Br, CCCC[Sn](CCCC)(CCCC)c1cncs1 to produce N#Cc1csc([N+](=O)[O-])c1-c1cncs1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.