Using O=C(c1ccccc1)c1ccc(F)cc1, CCOC(=O)CCC(=O)OCC to produce CCOC(=O)C(CC(=O)O)=C(c1ccccc1)c1ccc(F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.