Using O=C(O)CCNc1cc(Cl)c(Cl)cc1[N+](=O)[O-] to produce O=C1CCNc2c([N+](=O)[O-])cc(Cl)c(Cl)c21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.