Biologically active tripeptide and tetrapeptide alkylamides, and method
for the preparation thereof
    6.
    发明授权
    Biologically active tripeptide and tetrapeptide alkylamides, and method for the preparation thereof 失效
    生物活性三肽和四肽烷基酰胺及其制备方法

    公开(公告)号:US4528133A

    公开(公告)日:1985-07-09

    申请号:US538095

    申请日:1983-10-03

    CPC分类号: C07K5/1021 C07K5/0806

    摘要: This invention relates to biologically active tripeptide and tetrapeptide alkylamides of the general formula ##STR1## wherein R.sup.1 is an alkyl with 1 to 5 carbon atoms,A is a peptidically bound alanine or proline residue,B is a peptidically bound glycine, alanine or proline residue,n is an integer of 1 or 2, andR.sup.2 is an alkylcarbonylamino group with 2 to 12 carbon atoms, an alkenyl with 6 to 12 carbon atoms or a benzyloxycarbonylamino group.The compounds effectively inhibit the enzymatic activity of pancreatic and leucocytal elastase and are expected to find use in the treatment of acute pancreatitis, chronic obstructive pulmonary disease, pulmonary emphysema, and certain forms of arthritis. The invention also relates to processes for the preparation of the title compounds and to pharmaceutical compositions containing them.

    摘要翻译: 本发明涉及通式为“IMAGE”的生物活性三肽和四肽烷基酰胺,其中R 1是具有1至5个碳原子的烷基,A是肽结合的丙氨酸或脯氨酸残基,B是肽结合的甘氨酸,丙氨酸或脯氨酸残基 n为1或2的整数,R2为碳原子数2〜12的烷基羰基氨基,碳原子数为6〜12的烯基或苄氧羰基氨基。 这些化合物有效地抑制胰腺和白细胞弹性蛋白酶的酶活性,并且预期可用于治疗急性胰腺炎,慢性阻塞性肺病,肺气肿和某些形式的关节炎。 本发明还涉及制备标题化合物的方法和含有它们的药物组合物。

    Serum thymic factor peptide analogs and process for the preparation
thereof
    7.
    发明授权
    Serum thymic factor peptide analogs and process for the preparation thereof 失效
    血清胸腺因子肽类似物及其制备方法

    公开(公告)号:US4711952A

    公开(公告)日:1987-12-08

    申请号:US875230

    申请日:1986-06-17

    摘要: Novel peptide analogs of the serum thymic factor are disclosed, structurally modified, in comparison with the natural substance, both in their N-terminal and C-terminal parts and inside the amino-acid sequence, corresponding to the general formula IA-Gly-Gly-Ser-Asn-B-C-NH-R (I),in which A is pGlu, Gln, Ala-Lys-Ser-Gln, pGlu-Ala-Lys-Ser-Gln or Gln-Ala-Lys-Ser-Gln, B and C are Gly, Phe, Leu, Ala or a direct bond, and R is H, an alkyl with 1 to 6 carbon atoms or a 2-phenylethyl. Depending upon their chemical structure, the subject thymic factor analogs possess either agonistic (immunostimulative) or antagonistic (immunosuppressory) properties.

    摘要翻译: 与天然物质相比,在其N-末端和C末端部分以及氨基酸序列内部,与通式Ⅰ-Gly-1相对应,公开了与血清胸腺因子的新型肽类似物结构上的改变, Gly-Ser-Asn-BC-NH-R(I),其中A是pGlu,Gln,Ala-Lys-Ser-Gln,pGlu-Ala-Lys-Ser-Gln或Gln-Ala-Lys-Ser-Gln ,B和C为Gly,Phe,Leu,Ala或直接键,R为H,具有1至6个碳原子的烷基或2-苯基乙基。 根据其化学结构,受试者胸腺因子类似物具有激动(免疫刺激)或拮抗(免疫抑制)特性。