Using N#Cc1ccc(-c2ncccc2S)cc1, CCOC(=O)C(C)(C)Br to produce CCOC(=O)C(C)(C)Sc1cccnc1-c1ccc(C#N)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.