Using COC(=O)c1ccc(C(C)Br)cc1, CC(C)(C)c1ccc(CC(=O)OCc2ccccc2)cc1 to produce COC(=O)c1ccc(C(C)C(C(=O)OCc2ccccc2)c2ccc(C(C)(C)C)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.