Using CC[C@H](C(=O)O)[C@@H]1CCc2cc(OC)ccc21, O=C([O-])O to produce CC[C@H](C(=O)OC)[C@@H]1CCc2cc(OC)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.