Using COC(=O)c1c(C)n(C)c2cccc(Cl)c12, O=C1CCC(=O)N1Br to produce COC(=O)c1c(CBr)n(C)c2cccc(Cl)c12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.