Using BrCc1ccc(Br)cc1, COC(=O)c1ccc(CC2C(=O)OC(C)(C)OC2=O)cc1 to produce COC(=O)c1ccc(CC2(Cc3ccc(Br)cc3)C(=O)OC(C)(C)OC2=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.