Using O=C1c2cccc(OC(F)(F)C(F)(F)Br)c2C(=O)N1c1ccc(OC(F)(F)C(F)(F)Br)cc1 to produce O=C1c2cccc(OC(F)=C(F)F)c2C(=O)N1c1ccc(OC(F)=C(F)F)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.