| abstract |
Compounds and pharmaceutical compositions active againt HIV are provided, as is a method for the treatment of hepatitis B virus infection in humans and other host animals is provided comprising administering an effective amount of a .beta.-L-(2' or 3'-azido)-2',3'-dideoxy-5-fluorocytosine of formulae (I) and (H) wherein R is H, acyl, monophosphate, diphosphate, or triphosphate, or a stabilized phosphate derivative (to form a stabilized nucleotide prodrug), and R' is H, acyl, or alkyl. |