2,4(1H,3H)-Pyrimidinedione, 1-[3-azido-2,3-dideoxy-5-O-[hydroxy[3-[[hydroxy[[tetrahydro-5-(6-hydroxy-9H-purin-9-yl)-2-furanyl]methoxy]phosphinyl]oxy]-2-(octadecyloxy)propoxy]phosphinyl]pentofuranosyl]-5-methyl- AIDS-153768 AIDS153768 NSC704530