Synthesis and Structure Activity Relationships of 5-Substituted - 4′-thio-β-D-Arabinofuranosylcytosines
摘要:
Four 5-substituted (chloro, fluoro, bromo, methyl) 1-(4-thio-beta -D-arabinofuranosyl)cytosines and their a anomers were synthesized by a facile route in high yields. All of these nucleosides were evaluated for cytotoxicity against a panel of human tumor cell lines in vitro. Only 5-fluoro-1-(4-thio-beta -D-arabinofuranosyl)cytosine was found to be highly cytotoxic in all the cell lines and was further evaluated in vivo.