Using CC(=O)c1cc2c(cc1F)OCC(=O)N2, CCOC(=O)C(C)Br to produce CCOC(=O)C(C)N1C(=O)COc2cc(F)c(C(C)=O)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.