2,4(1H,3H)-Pyrimidinedione, 1-[(4aS,6R,7aR)-2-[4,4-bis(ethylthio)butyl]hexahydro-1-hydroxy-2H-furo[3,2-d][1,3]oxazin-6-yl]-5-methyl- AIDS-152708 AIDS152708 NSC697599