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