5-((3aR,4R,6R,6aR)-6-Hydroxymethyl-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl)-1-methyl-3,5-dihydro-1H-isoxazolo[3,4--d]pyrimidin-6-one AIDS-059325 AIDS059325 Ribosyl der.