Synthesis and Cytotoxic Activity of New Thiazolopyrimidine Sugar Hydrazones and Their Derived Acyclic Nucleoside Analogues

Molecules. 2020 Jan 18;25(2):399. doi: 10.3390/molecules25020399.

Abstract

New thienyl- or chlorophenyl-substituted thiazolopyrimidine derivatives and their derived sugar hydrazones incorporating acyclic d-galactosyl or d-xylosyl sugar moieties in addition to their per-O-acetylated derivatives were synthesized. Heterocyclization of the formed sugar hydrazones afforded the derived acyclic nucleoside analogues possessing the 1,3,4-oxadiazoline as modified nucleobase via acetylation followed by the cyclization process. The cytotoxic activity of the synthesized compounds was studied against human breast cancer MCF7 and MDA-MB-231 cell lines as well as human colorectal cancer HCT 116 and Caco-2 cell lines. High activities were revealed by compounds 1, 8, 10, 11, and 13 against Caco-2 and MCF7 cells in addition to moderate activities exhibited by other compounds against HCT116 or MDA-MB-231 cells.

Keywords: 1,3,4-oxadiazole; acyclic nucleosides; anticancer; sugar hydrazones; thiazolopyrimidine.

MeSH terms

  • Antineoplastic Agents / chemical synthesis*
  • Antineoplastic Agents / pharmacology*
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • Cell Survival / drug effects
  • Chemistry Techniques, Synthetic
  • Humans
  • Hydrazones / chemical synthesis*
  • Hydrazones / pharmacology*
  • Molecular Structure
  • Nucleosides / analogs & derivatives
  • Nucleosides / chemical synthesis*
  • Nucleosides / pharmacology*

Substances

  • Antineoplastic Agents
  • Hydrazones
  • Nucleosides