CARBOCYCLIC NUCLEOSIDE HEMISULFATE AND ITS USE IN TREATING VIRAL INFECTIONS

摘要

There is described the hemisulfate salt of (1S,4R)-cis-4- [2-amino-6-(cyclopropylamino) -9H-purin-9-yl]-2-cyclopentene-1-methanol or a solvate thereof. Also described are preparative routes and starting compounds for making the hemisulfate salt. The hemisulfate salt is useful in medicine, particularly in the treatment of viral infections.