Using COC1CC(N=[N+]=[N-])CCN(c2c([N+](=O)[O-])cnn2C)C1 to produce COC1CC(N)CCN(c2c([N+](=O)[O-])cnn2C)C1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.