Using CCCC[Sn](CCCC)(CCCC)c1ccnc(SC)n1, CC(C)(N)C#Cc1ccc(Br)cn1 to produce CSc1nccc(-c2ccc(C#CC(C)(C)N)nc2)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.