Metabolically acceptable polyisocyanate adhesives
    3.
    发明授权
    Metabolically acceptable polyisocyanate adhesives 失效
    代谢可接受的多异氰酸酯粘合剂

    公开(公告)号:US4829099A

    公开(公告)日:1989-05-09

    申请号:US74597

    申请日:1987-07-17

    摘要: Metabolically-acceptable, surgical adhesives are prepared from polyisocyanates having the structral formula: ##STR1## wherein R is a polyvalent aliphatic radical of about 1 to 10 carbon atoms or a polyvalent aromatic radical of 6 to about 24 carbon atoms;A is C, S or P;Z is O or S;Y is 1 when A is C or P, and 2 when A is S;n is 1 or 2;p is at least 1;q is 0 or 1, with the proviso that when A is carbon or sulfur, q is 0;r is 0 or 1, with the proviso that when A is carbon or sulfur, r is 0;X is a residue of an organic compound having active hydrogen-containing groups; andX' is a residue of an organic compound having at least 1 active hydrogen-containing group.

    摘要翻译: 代谢可接受的手术粘合剂由具有以下结构式的多异氰酸酯制备:其中R是约1-10个碳原子的多价脂肪族基团或6至约24个碳原子的多价芳族基团; A是C,S或P; Z是O或S; 当A为C或P时,Y为1,A为S时为2; n为1或2; p至少为1; q为0或1,条件是当A为碳或硫时,q为0; r为0或1,条件是当A为碳或硫时,r为0; X是具有含活性氢基团的有机化合物的残基; X'是具有至少1个含活性氢基团的有机化合物的残基。

    Rapid, quantitative peptide synthesis using mixed anhydrides
    5.
    发明授权
    Rapid, quantitative peptide synthesis using mixed anhydrides 失效
    使用混合酸酐快速定量肽合成

    公开(公告)号:US4351762A

    公开(公告)日:1982-09-28

    申请号:US242310

    申请日:1981-03-10

    CPC分类号: C07K5/0606 C07K1/08 C07K5/101

    摘要: In the synthesis of a polypeptide chain wherein an N.sup..alpha. -urethane-protected amino acid mixed anhydride is coupled with an amino-unprotected second amino acid, the improvement comprising conducting said coupling at room temperature or above. This method provides rapid, essentially quantitative reactions without the necessity for reduced temperatures. The method is particularly useful in the solid-phase synthesis of peptides where shortened coupling cycles and improved yields of substantially pure products are obtained.

    摘要翻译: 在其中Nα-氨基甲酸酯保护的氨基酸混合酸酐与氨基未受保护的第二氨基酸偶联的多肽链的合成中,改进包括在室温或更高温度下进行所述偶联。 该方法提供快速,基本上定量的反应,而不需要降低温度。 该方法在肽的固相合成中特别有用,其中获得缩短的偶联循环和改进的基本上纯的产物的产率。

    Rapid, large scale, automatable high pressure peptide synthesis
    6.
    发明授权
    Rapid, large scale, automatable high pressure peptide synthesis 失效
    快速,大规模,自动化的高压肽合成

    公开(公告)号:US4192798A

    公开(公告)日:1980-03-11

    申请号:US962334

    申请日:1978-11-20

    摘要: In the method for the synthesis of a polypeptide chain on an insoluble solid support wherein an amino acid is introduced into a reactor packed with an insoluble solid support containing substituent groups reactive with said amino acid, coupling said amino acid to said support by condensation reaction with said reactive substituent groups, introducing a second similar or dissimilar amino acid into said reactor and coupling said second amino acid to said first amino acid and repeating the process until the desired polypeptide is obtained, the improvement wherein a high pressure flow system is used and the reaction pressure in said reactor during said synthesis is at least 200 psi up to 10,000 psi or more, in order to obtain rapid reactions and quantitative yields of the desired products.

    摘要翻译: 在用于在不溶性固体支持物上合成多肽链的方法中,其中将氨基酸引入填充有与所述氨基酸反应的含有取代基的不溶性固体支持物的反应器中,通过与所述氨基酸的缩合反应将所述氨基酸与所述载体偶联 所述反应性取代基,将第二相似或不相似的氨基酸引入所述反应器并将所述第二氨基酸与所述第一氨基酸偶联并重复所述方法直到获得所需多肽,其改进在于使用高压流动系统, 在所述合成期间所述反应器中的反应压力为至少200psi至10,000psi或更高,以获得所需产物的快速反应和定量产率。

    Polypeptides containing 3,4-dihydroxyphenylalanine
    7.
    发明授权
    Polypeptides containing 3,4-dihydroxyphenylalanine 失效
    含有3,4-二羟基苯丙氨酸的多肽

    公开(公告)号:US4125519A

    公开(公告)日:1978-11-14

    申请号:US731946

    申请日:1976-10-13

    IPC分类号: C08G69/10

    CPC分类号: C08G69/10

    摘要: Homopolymers and copolymers containing the amino acid 3,4-dihydroxy-L-phenylalanine (dopa) have been prepared via the synthesis of a protected N-carboxyanhydride (NCA) of the amino acid. These dopa-containing polymers have many uses as in the treatment of Parkinsonism, as drug delivery systems, antioxidants, and fibers and in the production of non-thrombogenic substrates.

    摘要翻译: 通过合成氨基酸的保护的N-羧酸酐(NCA)制备含有氨基酸3,4-二羟基-L-苯丙氨酸(多巴)的均聚物和共聚物。 这些含多巴的聚合物在治疗帕金森综合征,药物递送系统,抗氧化剂和纤维以及非血栓形成基质的生产中具有许多用途。