Using NC1=NC2(CCN(C(=O)c3ccc([N+](=O)[O-])cc3)CC2)Nc2ccccc21 to produce NC1=NC2(CCN(C(=O)c3ccc(N)cc3)CC2)Nc2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.