Using COC(=O)c1cc(Br)c(C)cc1OC(C)=O, O=C1CCC(=O)N1Br to produce COC(=O)c1cc(Br)c(CBr)cc1OC(C)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.