FIELD: chemistry.
SUBSTANCE: invention relates to the field of organic chemistry, specifically to a heterocyclic compound of formula (I) or a pharmaceutically acceptable salt thereof, where the 
 component is 
 or 
 L1 represents -C(=O)-; L2 is a bond; m is selected from the group consisting of 1, 2, 3, and 4; R3 is 
 each of R11, R12 is independently selected from the group consisting of F, Cl, Br, I, CN, C1-10-alkyl and C3-10-cycloalkyl, C1-10-alkyl and C3-10-cycloalkyl optionally substituted with zero, one, two or three R01; R01 selected from the group consisting of F, Cl, Br and I. 
        
.
EFFECT: new benzofuran derivative has been obtained that is used as an NS4B inhibitor and is useful in treating the disease caused by the hepatitis C virus.
5 cl, 1 tbl, 68 ex
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Authors
Dates
2018-11-13—Published
2015-09-23—Filed