Using C[O-], COC(=O)c1ccc(-c2ccc(C(F)(F)F)cc2)nc1CBr to produce COCc1nc(-c2ccc(C(F)(F)F)cc2)ccc1C(=O)OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.