Using N#Cc1c(N)nc(S)c(C#N)c1-c1ccc(O)cc1, CCNC(=O)CBr to produce CCNC(=O)CSc1nc(N)c(C#N)c(-c2ccc(O)cc2)c1C#N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.