(1-{(2S,3R)-2-(2,4-Difluorophenyl)-2,3-dihydroxy-3-[2-oxo-3-(4-(1,2,3,4-tetraazolyl)phenyl)imidazolidinyl]propyl}-1,2,4-triazol-4-yl)methyl acetate AIDS-105570 AIDS105570 Prodrug of TAK-456 TAK-457