Using CC1(C)CCC2=C(O1)c1ccccc1C1(OCC(CN=[N+]=[N-])O1)C2=O to produce CC1(C)CCC2=C(O1)c1ccccc1C1(OCC(CN)O1)C2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.