Using Cc1cccc(C(O)(C(F)(F)F)C(F)(F)F)c1, O=C1CCC(=O)N1Br to produce OC(c1cccc(CBr)c1)(C(F)(F)F)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.