Using CCN1CN(C)CN(c2nc3ccc([N+](=O)[O-])c(CC#N)c3s2)C1=O to produce CCN1CN(C)CN(c2nc3ccc4noc(C#N)c4c3s2)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.