Provided herein are compounds, compositions and methods for the treatment of Flaviviridae infections, including HCV infections. In certain embodiments, compounds and compositions of nucleoside derivatives are disclosed, which can be administered either alone or in combination with other anti-viral agents. In certain embodiments, the compounds are D-alanine phosphoramidate pronucleotides of 2'-methyl 2'-fluoro guanosine nucleoside which display remarkable efficacy and bioavailability for the treatment of, for example, HCV infection in a human. In certain embodiments, the compounds are of Formula I or a pharmaceutically acceptable salt, solvate, stereoisomeric form, tautomeric form or polymorphic form thereof; where W and R are as described herein.
本文提供了用于治疗黄病毒科感染,包括HCV感染的化合物、组合物和方法。在某些实施例中,披露了核苷衍
生物的化合物和组合物,可以单独或与其他抗病毒药物联合给药。在某些实施例中,这些化合物是
D-丙氨酸磷酰胺前核苷酸的2'-甲基2'-
氟鸟苷核苷衍
生物,对于例如人体中的HCV感染的治疗显示出显著的疗效和
生物利用度。在某些实施例中,这些化合物是Formula I或其药用可接受的盐、溶剂合物、立体异构体形式、互变异构体形式或多形形式;其中W和R如本文所述。