Using COC(=O)CC1CCN(C(=O)Nc2ccc([N+](=O)[O-])cc2)Cc2ccccc21 to produce COC(=O)CC1CCN(C(=O)Nc2ccc(N)cc2)Cc2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.