US Patent 5,013,829
United States Patent and Trademark Office
University of Iowa Research Foundation (Iowa City, IA, US)
The preseent invention is concerned with congeners of 2',3'-dideoxyadenosine (ddA) with modifications at the 2- and 8- positions to increase stability of the compounds from the standpoint of resistance to deamination and hydrolytic cleavage of the glycosidic bond.
Nair, Vasu and Buenger, Greg S. Stable congener of 2',3'-dideoxyadenosine. US Patent 5,013,829 filed April 26, 1989 and issued May 07, 1991. https://ir.uiowa.edu/patents/84