Using CC(=O)OC(C)(C)C, COc1cc(Br)c(CBr)c(Br)c1 to produce COc1cc(Br)c(CCC(=O)OC(C)(C)C)c(Br)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.