Using CCCn1c(=O)c2[nH]c(Cc3ccccc3)nc2n(CCc2ccc([N+](=O)[O-])cc2)c1=O to produce CCCn1c(=O)c2[nH]c(Cc3ccccc3)nc2n(CCc2ccc(N)cc2)c1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.