Synthesis and biological activities of 2′-deoxy-2′-fluoro-4′-thioarabinofuranosylpyrimidine and -purine nucleosides
作者:Yuichi Yoshimura、Kenji Kitano、Kohei Yamada、Shinji Sakata、Shinji Miura、Noriyuki Ashida、Haruhiko Machida
DOI:10.1016/s0968-0896(00)00065-1
日期:2000.7
As part of our ongoing investigation of the synthesis of biologically interesting 2'-modified-4'-thionucleosides, we synthesized 2'-deoxy-2'-fluoro-4'-thioarabinofuranosylpyrimidine and -purine nucleosides, and evaluated their antiviral and antitumor activities. In the pyrimidine series, beta-anomers of 5-ethyluracil, 5-iodouracil, 5-chloroethyluracil, and 5-iodocytosine derivatives showed potent and
作为我们正在进行的生物学上有趣的2'-修饰的4'-硫代核苷合成研究的一部分,我们合成了2'-脱氧-2'-氟-4'-硫代阿拉伯呋喃糖基嘧啶和-嘌呤核苷,并评估了它们的抗病毒和抗肿瘤活性。在嘧啶系列中,5-乙基尿嘧啶,5-碘尿嘧啶,5-氯乙基尿嘧啶和5-碘胞嘧啶衍生物的β-端基异构体在体外显示有效和选择性的抗HSV-1和HSV-2活性。在嘌呤系列中,鸟嘌呤和2,6-二氨基嘌呤衍生物显示出显着的抗病毒活性,并具有轻微的细胞毒性。另一方面,5-氟胞嘧啶衍生物(5F-4'-thioFAC)对白血病和实体瘤均显示出有效的抗肿瘤活性。将其针对14种人实体瘤和一种白血病细胞系的抗肿瘤谱与4' -thioFAC。结果显示5F-4'-thioFAC具有与4'-thioFAC相似的抗肿瘤光谱。但是,5F-4'-thioFAC的活性比4'-thioFAC低约10倍。