Using Cc1nc2cc([N+](=O)[O-])ccc2c(=O)n1C1CCC(=O)NC1=O to produce Cc1nc2cc(N)ccc2c(=O)n1C1CCC(=O)NC1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.