"petids and processes for obtaining them". The invention relates to medicine, specifically to processes for obtaining biologically active substances with immunoregulatory properties, and may be used in medicine, veterinary science and experimental biochemistry. The problem covered by the invention is to produce a novel synthetic biologically active peptide with immunoregulatory properties of formulas x-a-d-trp-y, wherein a is d-glu, id-glu； x is h or gly, ala, leu, ile, val, nval, pro, tyr, phe, d-leu, d-leu, d-val, d-bval, d-pro, d-pro, d-tyr, d-phe, d-trp, γ-aminobutyric acid, Î ± -aminocaproic acid； y is gly, ala, leu, ile, val, nval, pro, tyr, phe, trp, d-leu, d-leu, d-val, d-nval, d-pro, d-tyr, d-phe, d-trp, γ-aminobutyric acid, <；sym>； -aminocaproic acid, -oh or substituted amide (c-1-c-3 ~). The peptide production process involves the synthesis of glutamyl-containing peptides in solution by cleavage of an internal anhydride of the tribuloxycarbonyl glutamic acid (d or l) with the appropriate d-trp-y k salt. this is followed by 11500 / chromatographic separation of <；244>； and y isomers. Further synthesis was performed by structuring a peptide chain using activated esters of amino tributyloxycarbonyl acids."petídeos e processos para sua obtenção". a invenção diz respeito à medicina, especificamente a processos de obtenção de substâncias biologicamente ativas com propriedades imuno-regulatórias, e pode ser usada na medicina, na ciência veterinária e na bioquímica experimental. o problema abrangido pela invenção é o de se produzir um novo peptídeo biologicamente ativo sintético com propriedades imuno-regulatórias, de fórmulas x-a-d-trp-y, em que a é d-glu, id-glu； x é h ou gly, ala, leu, ile, val, nval, pro, tyr, phe, d-ala, d-leu, d-ile, d-val, d-bval, d-pro, d-pro, d-tyr, d-phe, d-trp, ácido y- aminobutírico, ácido <；sym>；-aminocapróico； y é gly, ala, leu, ile, val, nval, pro, tyr, phe, trp, d-ala, d-leu, d-ile, d-val, d-nval, d-pro, d-tyr, d-phe,
