FIELD: medicine, pharmaceutics.
SUBSTANCE: present invention refers to a new cyclic peptide compound or its pharmaceutically acceptable salt which shows a hepatitis C virus activity based on an inhibiting activity of RNA replication of a hepatitis C virus replicon, to a method of producing it involving regrouping in a soft acid medium followed by amino acid exchange reactions, to a pharmaceutical composition containing said compound.
EFFECT: preparation of the drug exhibiting the anti-HCV activity.
16 cl, 44 tbl, 228 ex
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