FIELD: organic chemistry, medicine, pharmacy.
SUBSTANCE: invention relates to novel derivatives of benzimidazole of the general formula (I): 
wherein A represents -CH2- or -C(O)-; Y represents -S- or -NH-; R1 and R2 represent independently hydrogen atom, (C1-C8)-alkyl, (C5-C9)-bicycloalkyl optionally substituted with one or some similar or different (C1-C6)-alkyl radicals, or radical of the formula -(CH2)n-X wherein X represents amino-group, (C3-C7)-cycloalkyl and other values of radicals also given in the invention claim; R3 represents -(CH2)p-W-(CH2)p'-Z3 wherein W3 represents a covalent bond, -CH(O)- or -C(O)-; Z3 represents (C1-C6)-alkyl, aryl radical, heteroaryl and other values of radical also; V3 represents -O-, -S-, -C(O)-, -C(O)-O-, -SO2- or a covalent bond; Y3 represents (C1-C6)-alkyl radical optionally substituted with one or some halogen-radicals, amino-group, di-((C1-C6)-alkyl)-amino-group, phenylcarbonylmethyl, heterocycloalkyl or aryl radicals; p, p' and p'' represent independently a whole number from 0 to 4; R4 represents radical of the formula: -(CH2)s-R''4 wherein R''4 represents heterocycle comprising at least one nitrogen atom and optionally substituted with (C1-C6)-alkyl or aralkyl, and other values of radicals given in the invention claim also. Also, invention relates to a pharmaceutical composition showing antagonistic property with respect to GnRH and based on these compounds. Also, using above proposed compounds for preparing a medicament is considered. Invention provides synthesis of novel compounds, preparing pharmaceutical composition and medicament based on thereof in aims for treatment of such diseases as endometriosis, fibroma, polycystic ovary, breast, ovary and endometrium cancer, gonadotropic hypophysis desensitization in medicinal stimulation of ovary in fertility treatment in females.
EFFECT: valuable medicinal properties of compounds and pharmaceutical composition.
18 cl, 2 tbl, 538 ex
