1-[1,7-Dihydroxy-2-(2,2,7,7-tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-5-yl)-hexahydro-furo[3,2-d][1,3]oxazin-6-yl]-1H-pyrimidine-2,4-dione AIDS-141396 AIDS141396 NSC656913