Using CC1CN(CC(C)C(=O)c2ccc(C(C)(C)C)cc2)CC(C)O1, NO to produce CC1CN(CC(C)C(=NO)c2ccc(C(C)(C)C)cc2)CC(C)O1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.