Usui H, Ueda T
Nucleic Acids Symp Ser. 1984(15):61-3.
The radical- or photo-cyclization of protected 2'-iodoethyl or 2'-phenylthioethyl derivatives of 2'-deoxyadenosine afforded the 8,2'-ethano-cyclo-2'-deoxyadenosine, a new carbon-bridged adenine cyclonucleoside.