2',3'-Didehydro-3'-deoxy-4'-ethynylothymidine derivatives for treatment infections caused by human immunodeficiency virus (HIV) multidrug resistant strains, method of their synthesis and pharmaceutically acceptable forms of drugs
申请人:Instytut Biochemii I Biofizyki Pan
公开号:EP2402358A2
公开(公告)日:2012-01-04
4'-Ethynylostavudine derivatives according to the invention substituted at 4'-ethynylostavudine 5'-O-position with 12-tetradodecanoyl, 12-bromododecanoyl, 12-methoxydodecanoyl, 12-ethylothiododecanoyl, or 12-azidododecanoyl group (represented by the symbols WA37, WA38, WA40, WA42, WA39) in deClPhR™ cells exert very high antiviral activity against the wild type HIV-1 strain, as well as against its drug and multidrug resistant strains, without any citotoxicty at the therapeutic concentrations (CC50 >200 µM).
These compounds, because of their very low toxicity may be applied at all phases of AIDS, even at the final phase when the T4 lymphocytes level in patients drops down below 200/µL of peripheral blood.
The 2',3'- didehydro-3'-deoxy-4'-ethynylothymidine derivatives, according to the invention, are synthesized by the transformation of the known compound 4'-ethynylostavudine (WA32, wherein R represents hydrogen).
根据本发明,4'-乙炔洛司韦衍生物在4'-乙炔洛司韦5'-O-位置用十二十四烷酰基、十二溴十二烷酰基、十二甲氧基十二烷酰基、十二乙硫代十二烷酰基或十二叠氮十二烷酰基(用符号WA37、WA38、WA40、WA42、WA39表示)替代,在deClPhR™细胞中对野生型HIV-1株以及其药物和多药耐药株表现出非常高的抗病毒活性,在治疗浓度下没有任何细胞毒性(CC50 >200 µM)。由于这些化合物毒性非常低,因此可以在艾滋病的所有阶段使用,甚至在患者T4淋巴细胞水平下降至每微升外周血液低于200个时的最后阶段。根据本发明,2',3'-二去氢-3'-脱氧-4'-乙炔洛司韦衍生物是通过将已知化合物4'-乙炔洛司韦(WA32,其中R代表氢)转化合成的。