| 摘要 |
FIELD: medicine. ^ SUBSTANCE: invention refers to new compounds of formula (IX) or to their pharmaceutically acceptable salts having inhibitory activity to hepatitis C, to the related pharmaceutical composition and to their application for making a medical product. In compound of formula (IX) , R1 and R2 independently represent H, phosphate or acyl; X represents O; base* represents pyrimidine base; R12 represents C(Y3)3; Y3 represents H and R13 represents fluorine. ^ EFFECT: higher efficiency of the composition and treatment method. ^ 31 cl, 14 dwg, 26 ex |
