FIELD: medicine, pharmaceutics.
SUBSTANCE: present invention refers to compounds of formulas: 
wherein Ry represents hydoxy(C1-C10)alkyl; Ra and Rb independently represent hydrogen, optionally substituted C1-C10 alkyl, aryl, aryl(C1-C10)alkyl or (C1-C10)cycloalkyl, or Ra and Rb together with a nitrogen atom form a heterocyclic or a heteroaryl ring having 3 to 7 members; R1 is specified in ribavirin, viramidine, valopicitabine, PSI-6130, MK-0608, resiquimod, celgosivir, lamivudine, entecavir, telbivudine, racivir, emtricitabine, clevudine, amdoxovir and valtorcitabine; as well as to compositions based thereon for treating hepatitis B or C.
EFFECT: there are presented new effective compounds for hepatitis B or C.
13 cl, 2 dwg, 28 ex
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