Using CCOC(=O)C(O)CC(O)CC(=O)OC(C)(C)C, COC(C)(C)OC to produce CCOC(=O)C1CC(CC(=O)OC(C)(C)C)OC(C)(C)O1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.