Using Oc1ncn(-c2ccc(C(F)(F)F)cc2)n1, CCOC(=O)C(C)Br to produce CCOC(=O)C(C)Oc1ncn(-c2ccc(C(F)(F)F)cc2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.