Synthesis and antiviral and cytostatic activities of carbocyclic nucleosides incorporating a modified cyclobutane ring. Part 1: Guanosine analogues

Five new carbocyclic nucleosides were prepared by constructing a guanine(compounds 3,5) or 8-azaguanine (compounds 4,6, and 7) frase on the amino group of (1'S,3'R)-3-(3'-amino-2',2'-dimethylcyclobutyl)propan-1-ol (8), and their activities against a variety of viruses and tumor cell lines were determined. Only compounds 3 and 7 showed a detectable activity at subtoxic concentrations against some viruses tested.