Using CCC(C)=O, O=[N+]([O-])c1cnn(CCCCN2CCN(c3ncccn3)CC2)c1 to produce CCC(C)Nc1cnn(CCCCN2CCN(c3ncccn3)CC2)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.