Using O=C1CCC(=O)N1Br, COCOC(c1cc(C)ccc1I)(C(F)(F)F)C(F)(F)F to produce COCOC(c1cc(CBr)ccc1I)(C(F)(F)F)C(F)(F)F, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.