The synthesis of 1,2,4-triazines bearing a 1,2,4-triazinone moiety and
of 1,2,4-triazolo[4,3-b]-1,2,4-triazonones have been achieved by reac
tion of -hydrazino-6-spiro-(9-fluorenyl)-1,2,4-triazin-5(4 H)one with
various oxo- and halo-compounds. Structures of the products have been
deduced by elemental analysis and spectral data. Significant anti-HIV
and anticancer activities were observed in vitro for some members of t
he series.