Using CC(C)(C)OP(=O)([O-])OC(C)(C)C, COC(=O)c1cccc(CBr)c1 to produce COC(=O)c1cccc(COP(=O)(OC(C)(C)C)OC(C)(C)C)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.