Nonenzymic Joining of Oligoadenylates on a Polyuridylic Acid Template

Abstract

3',5'-Linked hexa-adenylic acid with a 2',3'-cyclic phosphate terminus [(A5A less than p] couples on a polyuridylic acid template in the presence of ethylenediamine to form the dodecamer (24 percent) and octadecamer (5 percent). The bond produced is largely that of the 2',5' isomer.