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    • 6. 发明公开
    • Immunosuppressant peptides
    • 免疫抑制肽。
    • EP0297456A2
    • 1989-01-04
    • EP88110111.7
    • 1988-06-24
    • MERRELL DOW PHARMACEUTICALS INC.
    • Cardin, Alan D.Bowlin, Terry L.Krstenansky, John L.
    • C07K7/08C07K7/06A61K37/02C07K1/04
    • C07K14/005A61K38/00C12N2740/10022
    • Novel peptides having a fragment containing 2 or 3 Arg or Lys residues and having a fragment containing 2 or 3 Gly, Leu, Ile, or Thr residues adjacent to the carboxy end of the first fragment and having amino and carboxy tails consisting of chains made up of any amino acids are immunosuppressant agents and can suppress the lymphocyte system by suppressing lymphocyte proliferation.
      The formula is as follows:
            Tn-A-B-C-D-Tc
      wherein
            Tn is an amino terminal residue selected from hydrogen, one or two alkyl groups of from 1 to 6 carbon atoms, one or two acyl groups of from 2 to 10 carbon atoms, carbobenzyloxy, and t -butyloxy­carbonyl;
            A is a peptide fragment containing from 3 to 12 residues of any amino acid;
            B is a peptide fragment containing 2 or 3 amino acid residues selected from Arg and Lys;
            C is a peptide fragment containing 2 or 3 amino acid residues selected from Gly, Leu, Ile, and Thr;
            D is a peptide fragment containing from 1 to 12 residues of any amino acid; and
            Tc is a carboxy terminal residue selected from OH, (C₁-C₆)alkoxy, amino, mono- or di-(C₁-C₄)alkyl substituted amino, and benzylamino.
    • 具有包含2或3个Arg或Lys残基的片段的新型肽,并且具有与第一片段的羧基末端相邻的2或3个Gly,Leu,Ile或Thr残基的片段,并具有由构成的链组成的氨基和羧基尾 任何氨基酸都是免疫抑制剂,可通过抑制淋巴细胞增殖来抑制淋巴细胞系统。 该公式如下:Tn-ABCD-Tc其中Tn是选自氢,一个或两个1-6个碳原子的一个或两个烷基,一个或两个2-10个碳原子的酰基的氨基末端残基,苄氧羰基, 和叔丁氧基羰基; A是含有任何氨基酸的3-12个残基的肽片段; B是含有选自Arg和Lys的2或3个氨基酸残基的肽片段; C是含有选自Gly,Leu,Ile和Thr的2或3个氨基酸残基的肽片段; D是含有任何氨基酸的1至12个残基的肽片段; 并且Tc是选自OH,(C 1 -C 6)烷氧基,氨基,单 - 或二 - (C 1 -C 4)烷基取代的氨基和苄基氨基的羧基末端残基。