Using CC(=O)c1ccc(Br)c(C(F)(F)F)c1, O=C(n1ccnc1)C(F)(F)F to produce O=C(CC(=O)C(F)(F)F)c1ccc(Br)c(C(F)(F)F)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.