2,4(1H,3H)-Pyrimidinedione, 5-(1-methylethyl)-1-[(6R)-tetrahydro-2-hydroxy-2-oxido-4H-furo[3,2-d]-1,3,2-dioxaphosphorin-6-yl]- 5-Isopropyl-2'-deoxyuridine 3',5'-Cyclic Monophospate 99606-22-1 AIDS-187704 AIDS187704