3′-OR 2′-HYDROXYMETHYL SUBSTITUTED NUCLEOSIDE DERIVATIVES FOR TREATMENT OF HEPATITIS VIRUS INFECTIONS

The present invention relates to a composition for and a method of treating hepatitis B virus (HBV) infection, hepatitis C virus (HCV) infection, hepatitis D virus (HDV) infection or a proliferative disorder in a patient using an effective amount of a compound selected from the group consisting of formulas (I)-(IV) below and mixtures of two or more thereof, wherein the substituents are as defined herein. Pharmaceutical compositions comprising these compounds in combination with other HBV, HCV, or HDV agents is also disclosed.