PRE-CADASTRO Sofosbuvir R-Phosphoryl D-Alaninate (10 mg) (Isopropyl [(R)-{[(2R,3R,4R,5R)-5-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-4-fluoro-3-hydroxy-4-methyltetrahydrofuran-2-yl]methoxy}(phenoxy)phosphoryl]-D-alaninate)