Using N#Cc1cccc(-c2n[nH]c(S)c2-c2ccncc2)c1, BrCCBr to produce N#Cc1cccc(-c2nn3c(c2-c2ccncc2)SCC3)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.