Using COC(=O)c1cc2c(Cl)nccc2[nH]1, FC(F)(F)Oc1ccc(OCCBr)cc1 to produce COC(=O)c1cc2c(Cl)nccc2n1CCOc1ccc(OC(F)(F)F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.