Using Cn1c(=O)c(-c2c(Cl)ccc([N+](=O)[O-])c2Cl)cc2ccccc21 to produce Cn1c(=O)c(-c2c(Cl)ccc(N)c2Cl)cc2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.