Using COc1cc(C(C)(C)C)c(O)cc1C(C)(C)C, COC(C)Br to produce COCCOc1cc(C(C)(C)C)c(OC)cc1C(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.