Using CCOC(=O)C[C@@H](NC(=O)CC(C)=O)c1ccc(F)cc1Br to produce C/C(O)=C1/C(=O)C[C@H](c2ccc(F)cc2Br)NC1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.