Using CCOC(=O)c1cn(C(C)C)c(Br)n1, N#Cc1ccc(C=O)cc1 to produce CCOC(=O)c1nc(Br)n(C(C)C)c1C(O)c1ccc(C#N)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.