Using CCOC(=O)CBr, CC1(C)CNC(=O)C1Oc1ccc(C#N)c(C(F)(F)F)c1 to produce CCOC(=O)CN1CC(C)(C)C(Oc2ccc(C#N)c(C(F)(F)F)c2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.