BENZIMIDAZOLE DERIVATIVES, SYNTHESIS METHODS THEREOF, USE THEREOF AS FARNESOID X RECEPTOR (FXR) AGONIST AND PHARMACEUTICAL PREPARATIONS CONTAINING SAID DERIVATIVES

FIELD: chemistry. ^ SUBSTANCE: invention relates to novel benzimidazole derivatives of formula ^ ^ and pharmaceutically acceptable salts and esters thereof, where R1 denotes C1-10alkyl, lower alkoxy group-lower alkyl, lower alkoxy group-carbonyl-lower alkyl, C3-6cycloalkyl, C3-6cycloalkyl-lower alkyl, phenyl, phenyl-lower alkyl, di(phenyl)-lower alkyl, heterocyclyl, such as piperidinyl, tetrahydropyranyl, 2-oxo-pyrrolidinyl-lower alkyl, where the cycloalkyl, phenyl or heterocyclyl group is optionally substituted with 1-2 substitutes independently selected from a group comprising lower alkyl, lower alkoxy group, lower alkoxy group-carbonyl, morpholinyl, formylamino group and halogen; R2 denotes hydrogen or lower alkyl; R3 denotes lower alkyl, C3-6cycloalkyl, partially unsaturated cyclohexyl, phenyl, phenyl-lower alkyl, pyridinyl, benzodioxolyl, tetrahydropyranyl, where the phenyl group is optionally substituted with 1-2 substitutes independently selected from a group comprising a halogen, lower alkyl, lower alkoxy group, fluoro-lower alkyl, fluoro-lower alkoxy group, N(lower alkyl)2; R4 denotes: a) heteroaryl which is an aromatic 5-6-member monocyclic ring or a 9-10-member bicyclic ring containing 1 or 2 heteroatoms selected from nitrogen, oxygen and/or sulphur, which is optionally substituted with 1-2 substitutes independently selected from a group comprising lower alkyl, phenyl, lower alkoxy group, -N(lower alkyl)2, oxo group, NH2, halogen, cyano group and morpholinyl; b) unsubstituted naphthyl, naphthyl or phenyl, which are substituted with 1-3 substitutes independently selected from a group comprising halogen, hydroxy group, NH2, CN, hydroxy-lower alkyl, lower alkoxy group, lower alkyl-carbonyl, lower alkoxy group-carbonyl, sulphamoyl, di-lower alkyl-sulphamoyl, lower alkyl-sulphonyl, thiophenyl, pyrazolyl, thiadiazolyl, imidazolyl, triazolyl, tetrazolyl, 2-oxopyrrolidinyl, lower alkyl, fluoro-lower alkyl, fluoro-lower alkoxy group, N(lower alkyl)2, carbamoyl, lower alkenyl, benzoyl, phenoxy group and phenyl which is optionally substituted with 1-2 substitutes independently selected from halogen and fluoro-lower alkyl; or c) if R3 denotes cycloalkyl and R1 denotes cycloalkyl, then R4 can also denote phenyl; R5, R6, R7 and R8 independently denote H, halogen, lower alkoxy group or lower alkyl, or R6 and R7, which are bonded to each other, form a 6-member aromatic carbocyclic ring together with carbon atoms to which they are bonded; provided that the compo