Compounds and pharmaceutical compositions active against HIV are provided,
as is a method for the treatment of HIV infection in humans and other host animals
is provided comprising administering an effective amount of a -L-(2
or 3-azido)-2,3-dideoxy-5-fluorocytosine of the formula
##STR1##
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.
