Using N#Cc1ccc2[nH]c(S)nc2c1, COC(=O)c1cccc(CBr)c1 to produce COC(=O)c1cccc(CSc2nc3ccc(C#N)cc3[nH]2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.