Using CN1CCC(N)CC1, O=C(O)c1ccc([N+](=O)[O-])c2c1OCO2 to produce CN1CCC(NC(=O)c2ccc([N+](=O)[O-])c3c2OCO3)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.