Using Cc1ccc(C(=O)C(C)C)cc1, COc1c(C)c(C)c(NC(=O)OC(C)(C)C)c(C)c1Br to produce COc1c(C)c(C)c(NC(=O)OC(C)(C)C)c(C)c1C(O)(c1ccc(C)cc1)C(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.