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).
根据本发明的 2',3'-二脱氧-3'-
氟-
4-硫代胸苷(4-SFLT)衍
生物,在 4-SFLT 的 5'-O位上被 12-十四酰基、12-
溴十二酰基、12-甲氧基十二酰基、12-乙基
硫代十二酰基、11-乙基
硫代十一酰基或 12-
叠氮十二酰基取代(用符号 W
A18、WA19、WA21、WA22、WA23 和 WA20 表示)、在 de
CIPhR™
细胞系统中,WA19、WA21、WA22、WA23 和 WA20 对野生型 HIV-1 株及其耐药和耐多药菌株具有很高的抗病毒活性,而且柠檬毒性很低(CC50 > 200 µM),选择性很高。
由于没有毒性,这些化合物可用于所有艾滋病阶段,即当患者的 T4 淋巴细胞
水平下降到每微升外周血 200 个以下时。
本发明的 2',3'-二脱氧-3'-
氟-4-
硫胸苷衍
生物是由已知化合物 2',3'-二脱氧-3'-
氟-4-
硫胸苷(4-SFLT)转化合成的。