SUBSTITUTED DERIVATIVES OF 1-AMINOBUTANE-3-OL, METHOD FOR THEIR PREPARING AND MEDICINAL AGENT

FIELD: organic chemistry, medicine, pharmacy. ^ SUBSTANCE: invention relates to novel derivatives of 1-aminobutane-3-ol of the general formula (I): and their physiologically acceptable salts possessing analgesic effect and capacity for binding habapentin-site. In the general formula (I) R1 and R2 form in common (CH2)2-9-ring; each R3 and R4 independently of one another means (C1-C6)-alkyl that is branched or direct, saturated or unsubstituted, benzyl or phenethyl that are unsubstituted; R5 means (C1-C10)-alkyl that can be saturated, unsaturated, branched or direct or unsubstituted, (C3-C9)-cycloalkyl that is saturated, phenyl or 5-membered sulfur-containing heteroaryl possibly condensed with benzene ring, (C3-C6)-cycloalkyl bound through saturated or unsaturated (C1-C3)-alkyl, 5-membered possibly condensed with benzene ring sulfur-containing heteroaryl bound through saturated or unsaturated (C1-C3)-alkyl wherein each aryl, heteroaryl and cycloalkyl residue independently of one another can be unsubstituted or mono- or multi-substituted with residues chosen independently of one another from the group comprising atoms F, Cl, Br, J, -OR18, (C1-C10)-alkyl that is saturated or unsaturated, branched or direct and can be mono- or multi-substituted with halogen atoms wherein R18 represents hydrogen atom (H), (C1-C10)-alkyl that is saturated, branched or direct or unsubstituted; R6 means H; R7 means (C1-C6)-alkyl that is branched or direct, saturated or unsaturated or unsubstituted, (C3-C9)-cycloalkyl that is saturated or unsubstituted, phenyl that is unsubstituted or mono- or multi-substituted or phenyl bound through saturated (C1-C3)-alkyl that can be unsubstituted or mono- or multi-substituted wherein these substitutes can be chosen independently from the group comprising atoms F, Cl, Br, J, -OR18, (C1-C10)-alkyl that is saturated or unsaturated, branched or direct, in free form as their physiologically acceptable salts. Proposed compounds can be used in treatment of pain and first of all neuropathic, chronic and acute pain. Also, invention relates to a method for synthesis of compounds and preparing a medicinal agent. ^ EFFECT: improved preparing method, valuable medicinal properties of compounds. ^ 9 cl, 89 ex