| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to new compounds of formula , to their salts, where R1 and R2 each independently is hydrogen or C1-10alkyl which can be optionally substituted with substitutes selected from a group comprising a hydroxyl group, NR4R5, pyrrolidinyl, piperidinyl, morpholinyl; R3 is a radical of formula , where n equals 1; R3a is nitro; X is -NR7 - or -O-; R4 and R5 each independently is C1-6alkyl; R7 is hydrogen, C1-6alkyl, optionally substituted with pyrrolidinyl. The invention also pertains to use of the compounds, to a pharmaceutical composition, to a method of preparing the pharmaceutical composition, as well as to a method of obtaining the chemical compound in any of paragraphs 1-3. ^ EFFECT: obtaining new biologically active compounds with antiviral activity. ^ 7 cl, 4 ex, 2 tbl |
