US Patent 4,992,427
United States Patent and Trademark Office
University of Iowa Research Foundation (Iowa City, IA, US)
Certain functionalized inosines, preferably C2 alkylated inosines, are prepared as new compounds having use as antiviral agents against viruses.
Nair, Vasu 2-substituted inosines and their use as antiviral agents. US Patent 4,992,427 filed June 15, 1989 and issued February 12, 1991. https://ir.uiowa.edu/patents/83