Using CCCCCCCCCCCCOc1ccc(C=O)cc1OCCCCCCCCCCCC, BrC(Br)(Br)Br to produce CCCCCCCCCCCCOc1ccc(C=C(Br)Br)cc1OCCCCCCCCCCCC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.