| 摘要 |
The invention relates to medicine, specifically, to methods of obtaining biologically active substances with immuno-regulating properties, and can be used in medicine and veterinary science and in experimental biochemistry. Th e fundamental problem addressed by the invention is that of producing a novel synthetic biologically active peptide with immuno-regulating properties and of the formula: X-Glu-Trp-Y, in which X is H or 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, D- Trp, .gamma.-aminobutyric acid, -aminocaproic acid; Y is 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, D-Trp, .gamma.-aminobutyric acid, - aminocaproic acid, -OH, mono - or di-substituted amide (C1-C3). Peptide synthesis takes place in a solution by successive growth of a chain from the C termination of the molecules, usi ng a strategy of maximum blocking of functional groups, starting from amino aci d alkyl ether, using the method of activating the ethers and the method of mix ed anhydrides using tributyloxicarbonyl amino acid.
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