Using O=C([O-])[C@H]1/C(=C/CO)O[C@@H]2CC(=O)N21 to produce O=C(O)[C@H]1/C(=C/CO)O[C@@H]2CC(=O)N21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.