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