Sofosbuvir impurity I

(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 Sofosbuvir Impurity27 L-Alanine, N-[(S)-hydroxyphenoxyphosphinyl]-, 1-Methylethyl ester, (P→3'),(P'→5')-diester with (2'R)-2'-deoxy-2'-fluoro-2'-Methyluridine Sofosbuvir Impurity23 Sofosbuvir metabolites (2R,3R,4R,5S)-5-(4-benzaMido-2-oxopyriMidin-1(2H)-yl)-2-((benzoyloxy)Methyl)-4-fluoro-4-Methyltetrahydrofuran-3-yl benzoate PSI-7976 Sofosbuvir SofosBuvir impurity 21 Sofosbuvir Impurity22 1-((2R,3R,4R,5R)-3-chloro-4-hydroxy-5-(hydroxyMethyl)-3-Methyltetrahydrofuran-2-yl)pyriMidine-2,4(1H,3H)-dione Sofosbuvir impurity J Sofosbuvir IMpurity C Sofosbuvir impurity M D-Alanine, N-[[P(R),2'R]-2'-deoxy-2'-fluoro-2'-Methyl-P-phenyl-5'-uridylyl]-, 1-Methylethyl ester sofosBuvir Impurity 34 SofosBuvir Impurity 39