The present invention relates to 5'-Substituted Nucleoside Derivatives of Formula (I): (I) and pharmaceutically acceptable salts thereof, wherein B, X, Y, Z, R1, R2, R3 and R3' are as defined herein. The present invention also relates to compositions comprising at least one 5'-Substituted Nucleoside Derivative, and methods of using the 5'-Substituted Nucleoside Derivatives for treating or preventing HCV infection in a patient.
本发明涉及式(I)的5'-取代核苷衍
生物及其药学上可接受的盐,其中B、X、Y、Z、R1、R2、R3和R3'如本文所定义。本发明还涉及包含至少一种5'-取代核苷衍
生物的组合物,以及使用这些5'-取代核苷衍
生物治疗或预防患者HCV感染的方法。