摘要
Triazolo-fused 3＇,4＇-cyclic nucleoside 4＇-spiro nucleoside analogues were synthesized by an intramolecular 1,3-dipolar cycloaddition of 4＇-azido nucleoside derived azido-alkynes in a regio- and stereo-specific manner. The thy- mine nucleoside base in these target compounds was transformed into the corresponding 5-methyl cytosine component. The synthesized compounds were examined in an MAGI（multinuclear-activation galactosidase indicator） assay for exploring the anti-HIV activity and in a H9 T（human T lymphocytes Hg） assay for measuring the cell toxicity.
Triazolo-fused 3＇,4＇-cyclic nucleoside 4＇-spiro nucleoside analogues were synthesized by an intramolecular 1,3-dipolar cycloaddition of 4＇-azido nucleoside derived azido-alkynes in a regio- and stereo-specific manner. The thy- mine nucleoside base in these target compounds was transformed into the corresponding 5-methyl cytosine component. The synthesized compounds were examined in an MAGI（multinuclear-activation galactosidase indicator） assay for exploring the anti-HIV activity and in a H9 T（human T lymphocytes Hg） assay for measuring the cell toxicity.
