Using Cc1ccc2c(c1)OC1(CCN(C(=O)C(F)(F)F)CC1)c1ccc(C#N)n1-2, O=C1CCC(=O)N1Br to produce N#Cc1ccc2n1-c1ccc(CBr)cc1OC21CCN(C(=O)C(F)(F)F)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.