PRE-CADASTRO Sofosbuvir 3'-O-Isomer (10 mg) (Isopropyl [(S)-{[(2R,3R,4R,5R)-5-[2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl]-4-fluoro-2-(hydroxymethyl)-4-methyltetrahydrofuran-3-yl]oxy}(phenoxy)phosphoryl]-L-alaninate)