Using CCOC(=O)CBr, Cc1ccc(O)c(F)c1NCc1cc(-c2cccc(F)c2)ccc1F to produce CCOC(=O)COc1ccc(C)c(NCc2cc(-c3cccc(F)c3)ccc2F)c1F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.