Using COc1ccc(COCCl)cc1, CCOC(=O)C(C(=O)OCC)c1ccc(F)c(F)c1 to produce CCOC(=O)C(COCc1ccc(OC)cc1)(C(=O)OCC)c1ccc(F)c(F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.