2’-Deoxy-5-iodocytidine (5-I-dC)

5-Iodo-2’-Deoxyuridine (5-I-dU)

7-Deaza-7-Iodo-2’-deoxyadenosine (7-Deaza-7-I-2’-dA)

7-Deaza-7-Iodo-2’-deoxyguanosine (7-Deaza-7-I-2’-dG)