Using COC(=O)CP(=O)(OC)OC, CC1CC(=O)C(C)(C(=O)OC(C)(C)C)O1 to produce COC(=O)CC1CC(C)OC1(C)C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.