SofosBuvir impurity 21

alpha-D-erythro-Pentofuranous-2-ulose 1,3,5-tribenzoate 1-((2R,3R,4R,5R)-3-chloro-4-hydroxy-5-(hydroxyMethyl)-3-Methyltetrahydrofuran-2-yl)pyriMidine-2,4(1H,3H)-dione Sofosbuvir Impurity 6 Sofosbuvir impurity I 1-((2R,3S,4R,5R)-3,4-dihydroxy-5-(hydroxyMethyl)-3-Methyltetrahydrofuran-2-yl)pyriMidine-2,4(1H,3H)-dione SofosBuvir Impurity 53 sofosBuvir impurity 43 Sofosbuvir sofosBuvir Impurity 37 ((2R,3R,4R)-3-(benzoyloxy)-4-fluoro-4-methyl-5-oxotetrahydrofuran-2-yl)methyl benzoate SofosBuvir Impurity 40 (S)-methyl 2-(((S)-(((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)amino)propanoate sofosBuvir Impurity 33 Sofosbuvir IMpurity Sofosbuvir impurity J Cytidine,N-benzoyl-2^-C-Methyl-,3^,5^-dibenzoate(9CI) Sofosbuvir Impurity26 SofosBuvir Impurity 2