Synthesis and comparative anti-HIV activities of new acetylated 2′,3′-dideoxy-3′-thiacytidine analogues
摘要:
A series of prodrugs of 2',3'-dideoxy-3'-thiacytidine have been synthesized in an effort to enhance the uptake of the prodrugs by HIV-1 infected cells and to increase the plasma half-life. The anti-HIV 1 activities of the new analogues and their cytotoxicities were determined in MT(4) cells. In vitro hydrolysis of the various drugs including retinoic acid derivatives, indicated that these agents were relatively stable toward plasma esterases. Most prodrugs with higher partition coefficients than 2',3'-dideoxy-3'-thiacytidine should diffuse into the cells to a greater extent.