FIELD: medicine, pharmaceutics.
SUBSTANCE: invention relates to novel cyclic compounds of general formula 
which possess properties of CaSR modulator. In general formula I group 
represents cycloalkyl, which contains 4-7 carbon atoms, optionally substituted with one or several similar or different substituents, selected from R2, R3, R4 or R5; A represents 1-naphthyl; R1 represents methyl, ethyl or n-propyl, each of which is optionally substituted with one or several, similar or different substituents, selected from halogen and hydroxy; R2 and R3 represent hydrogen; R4 represents hydrogen, halogen, hydroxy or C1-6alkyl; each R5 represents independently one or several similar or different substituents, represented by hydrogen or C1-6alkyl; G represents -C(O)NH2, C3-8cycloalkyl, C1-6heterocycloalkyl, C1-6heterocycloalkenyl, C3-8cycloalkenyl, C6-14aryl, C1-10heteroaryl, C6-10arylamino, hydroxyaminocarbonyl, C6-10arylaminocarbonyl, C1-4aminocarbonyl, C1-6heterocycloalkylcarbonyl, C1-10heteroarylaminocarbonyl, C6-10arylsulfonylaminocarbonyl, C6-14aryloxy, or C1-4alkoxycarbonyl, where said substituents are optionally additionally substituted with one or several, similar or different substituents. Other values of radicals are given in the formula of invention.
EFFECT: compounds can be applied in treatment, relief or prevention of physiological disorders or diseases, associated with impairment of activity of CaSR, such as hyperparathyreosis, and other diseases.
23 cl, 9 dwg, 3 tbl, 315 ex
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