FIELD: chemistry.SUBSTANCE: invention relates to organic chemistry, namely to heterocyclic compound of formula (I), as well as to its pharmaceutically acceptable salt and enantiomer, where R1 is a hydrogen atom, phenyl, linear saturated hydrocarbon chain containing 1-5 carbon atoms, cycloalkyl containing 5-6 carbon atoms, or straight saturated hydrocarbon chain containing 1-4 carbon atoms, substituted cycloalkyl containing 3 carbon atoms； R2 is hydrogen atom, hydroxyl, linear saturated hydrocarbon chain containing 1-5 carbon atoms, straight saturated hydrocarbon chain containing 1-4 carbon atoms, substituted cycloalkyl containing 3-7 carbon atoms, oxygen atom, substituted linear saturated hydrocarbon chain containing 1-4 carbon atoms, an oxygen atom, substituted carbonyl, substituted linear saturated hydrocarbon chain containing 1-4 carbon atoms, carbonyl, substituted linear saturated hydrocarbon chain containing 1-4 carbon atoms, or cycloalkyl containing 6 carbon atoms, carbonyl, substituted by oxygen atom, substituted linear saturated hydrocarbon chain containing 1-4 carbon atoms, Carbonyl, substituted monoalcylamino, alkyl which is linear saturated hydrocarbon chain containing 1 carbon atom, carboxyl group, cyano group or amino group, bisubstituted phenyl or linear hydrocarbon chain containing 1-4 carbon atoms； R3 is linear saturated hydrocarbon chain containing 1 carbon atom, substituted phenyl, possibly substituted with one or two groups, selected from halogen and oxygen, substituted linear saturated hydrocarbon chain containing 1 carbon atom； R4 is linear saturated hydrocarbon chain containing 1-4 carbon atoms, substituted imidazole, unsubstituted or substituted linear saturated hydrocarbon chain containing 1 carbon atom； R5 represents hydrogen atom or linear hydrocarbon chain containing 1-4 carbon atoms； X represents oxygen atom or sulphur atom； n, m equals to 1 or 2. Invention also relates to use of formula (I), pharmaceutical and cosmetic compositions based
