Using C[O-], CC(C)(C)OC(=O)[C@H]1CC[C@H]2C[C@@H]1C(=O)O2 to produce COC(=O)[C@H]1C[C@@H](O)CC[C@@H]1C(=O)OC(C)(C)C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.