Modified 2',3'-dideoxynucleosides for treatment infections caused by human immunodeficiency virus (HIV) multidrug resistant strains, method of their synthesis and the pharmaceutical agent containing these nucleosides
申请人:Instytut Biochemii I Biofizyki Pan
公开号:EP2402356A3
公开(公告)日:2012-07-18
2',3'-Dideoxy-3'-fluoro-4-thiothymidine (4-SFLT) derivatives according to the invention substituted at 5'-O position of 4-SFLT with 12-tetradodecanoyl, 12-bromododecanoyl, 12-metoxydodecanoyl, 12-ethylothiododecanoyl, 11-ethylothioundecanoyl or 12-azidodocanoyl group (represented by the symbols WA18, WA19, WA21,WA22,WA23 and WA20 in the deCIPhR™ cell system exert high antiviral activity against wild type HIV-1 strain, as well as against its drug and multidrug resistant strains, and moreover very low citotoxicity (CC50 > 200 µM) and very high selectivity.
The compounds, because of lack of toxicity may be applied at all AIDS phases i.e. also them the T4 lymphocytes level in patients drops down below 200/ µL of peripheral blood.
2',3'-Dideoxy-3'-fluoro-4-thiothymidine derivatives according to the invention are synthesized by the transformation of the known compound 2',3'-dideoxy-3'-fluoro-4-thiothymidine (4-SFLT).
本发明的2',3'-二脱氧-3'-氟-4-硫代胸腺嘧啶(4-SFLT)衍生物,在4-SFLT的5'-O位置用12-四十二碳酰基、12-溴十二碳酰基、12-甲氧基十二碳酰基、12-乙基硫代十二碳酰基、11-乙基硫代十一碳酰基或12-叠氮十二碳酰基(在deCIPhR™细胞系统中用符号WA18、WA19、WA21、WA22、WA23和WA20表示)进行取代,对野生型HIV-1株以及其耐药和多药耐药株具有高抗病毒活性,并且细胞毒性非常低(CC50> 200 µM)和选择性非常高。由于缺乏毒性,这些化合物可应用于所有艾滋病阶段,即使在患者的T4淋巴细胞水平降至每个外周血液中的200 / µL以下。根据本发明的2',3'-二脱氧-3'-氟-4-硫代胸腺嘧啶衍生物是通过转化已知化合物2',3'-二脱氧-3'-氟-4-硫代胸腺嘧啶(4-SFLT)合成的。