Synthesis and Biological Activities of Some New 5′-Substituted S-Adenosylhomocysteine Analogues∗

Abstract
The synthesis of new S-adenosyl-homocysteine (SAH) analogues substituted at the 5′-position is described. Their activity on cell transformation induced by Rous sarcoma virus (RSV) as well as their effect on cell growth and on replication of polyoma virus were also studied. The best results were obtained with compounds having a phenyl group at the 5′-position of adenosine. These molecules inhibit very strongly uridine uptake by cells.