Using CCOC(=O)c1cn2c(c1O)C(=O)N(CC)C[C@@H]2C, O=C([O-])[O-] to produce CCOC(=O)c1cn2c(c1OC)C(=O)N(CC)C[C@@H]2C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.