Using CCOC(=O)COc1ccc(F)cc1C1NCCc2ccccc21, O=C(Br)CBr to produce CCOC(=O)COc1ccc(F)cc1C1c2ccccc2CCN1C(=O)CBr, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.