Using CCNc1ncc2c(n1)N1CCCC1CN(Cc1ccc([N+](=O)[O-])cc1)C2=O to produce CCNc1ncc2c(n1)N1CCCC1CN(Cc1ccc(N)cc1)C2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.