Using CCOC(=O)C(F)P(=O)(OCC)OCC, CCCOC(=O)/C(Br)=C/C1C(C(=O)O)C1(C)C to produce CCOC(=O)/C(F)=C\C1C(C(=O)O)C1(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.