Using Cc1ccc2c(-c3ccoc3)cc(C#N)nc2c1, O=C1CCC(=O)N1Br to produce N#Cc1cc(-c2ccoc2)c2ccc(CBr)cc2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.