Using NNc1cnccn1, CCOC(=O)C([O-])=C1C[C@H]2C[C@H]2C1=O to produce O=C(O)c1nn(-c2cnccn2)c2c1C[C@H]1C[C@@H]21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.