Using C[N+]1([O-])CCOCC1, COC(=O)c1cc(Br)c(CBr)c(Br)c1 to produce COC(=O)c1cc(Br)c(C=O)c(Br)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.