Nucleosides 8 [18]: Ribosylation of Fused Quinazolines—Synthesis of New [1,2,4]Triazolo[5,1-b]- and [1,2,4]Triazino[3,2-b]quinazoline Nucleosides of Fluorescence Interest

<table>Synthesis of 4-β-D-ribofuranosyl-[1,2,4]triazino[3,2-b]quinazoline-3,10(4H)dione (17) and 4-β-D-ribofuranosyl-2-phenacyl[1,2,4]triazino[3,2-b]quinazoline-3,10(1H)dione (21).</table>

Journal of Chemistry

sch3

Scheme 3

Scheme 3: Nucleosides 8 [18]: Ribosylation of Fused Quinazolines—Synthesis of New [1,2,4]Triazolo[5,1-b]- and [1,2,4]Triazino[3,2-b]quinazoline Nucleosides of Fluorescence Interest

Scheme 3 | Nucleosides 8 [18]: Ribosylation of Fused Quinazolines—Synthesis of New [1,2,4]Triazolo[5,1-b]- and [1,2,4]Triazino[3,2-b]quinazoline Nucleosides of Fluorescence Interest 