AIDS-029688 AIDS029688 GS-7171 L-Alanine, N-[[[[(1R)-2-(6-amino-9H-purin-9-yl)-1-methylethyl]oxy]methyl]phenoxyphosphinyl]-, isopropyl ester Tenofovir-phosphonamidate, phenyl, L-alanine isopropyl ester