AIDS-165578 AIDS165578 [5-(6-Aminopurin-9-yl)-4-({[5-(5-fluoro-2,4-dioxo(1,3-dihydropyrimidinyl))-3-hydroxyoxolan-2-yl]methyl}oxyphosphinyl)-3-hydroxyoxolan-2-yl]methyl 2-(6-aminopurin-9-yl)-4-hydroxy-5-(hydroxymethyl)oxolan-3-yl hydrogen phosphate