119644-01-8 2,4(1H,3H)-Pyrimidinedione, 1-[5-O-[hydroxy[[hydroxy(phosphonooxy)phosphinyl]oxy]phosphinyl]-b-D-arabinofuranosyl]-5-(1-propenyl)- 5-(1-Propenyl)-1.beta.-D-arabinofuranosyl uracil-5'-triphosphate AIDS-000037 AIDS000037 nPrearaUTP