Process for the preparation of pentapeptides having an action on the
immune system and intermediate products for this process
    6.
    发明授权
    Process for the preparation of pentapeptides having an action on the immune system and intermediate products for this process 失效
    制备对该过程具有免疫系统作用的五肽和中间产物的方法

    公开(公告)号:US4658016A

    公开(公告)日:1987-04-14

    申请号:US742441

    申请日:1985-06-07

    摘要: The invention relates to a process for the preparation of peptides of the general formulaArg--Lys--S--Val--Yin which S denotes glutamic acid or .alpha.-aminoadipic acid and Y denotes tyrosine or tryptophan or esters or amides thereof, which comprises subjecting tetrapeptides of the formulaZ--Arg(Z'.sub.2)--Lys(Z')--S--(Bzl)--Val--OHin which Z' represents a protective group of the benzyl type, to a condensation reaction with corresponding tyrosine esters or amides or tryptophan esters or amides and removing the protective groups by hydrogenation. The invention furthermore relates to tetrapeptides as intermediate products of this process.

    摘要翻译: 本发明涉及制备通式Arg-Lys-S-Val-Y的肽的方法,其中S表示谷氨酸或α-氨基己二酸,Y表示酪氨酸或色氨酸或其酯或酰胺,其包括 式Z-Arg(Z'2)-Lys(Z')-S-(Bzl)-Val-OH的四肽,其中Z'表示苄基类型的保护基,与相应的酪氨酸酯缩合反应或 酰胺或色氨酸酯或酰胺,并通过氢化除去保护基。 本发明还涉及作为该方法的中间产物的四肽。

    New peptides and a process for their preparation
    8.
    发明授权
    New peptides and a process for their preparation 失效
    新肽及其制备方法

    公开(公告)号:US4420424A

    公开(公告)日:1983-12-13

    申请号:US319267

    申请日:1981-11-09

    摘要: What are disclosed are pentapeptides, useful for influencing the maturing of T-lymphocytes, of the formulaG--K--Q--X--MwhereinG is arginine, lysine, ornithine, or homoarginine, or is an unsubstituted or substituted .omega.-aminoalkanoyl, .omega.-guanidinoalkanoyl, or .omega.-dimethylaminoalkanoyl;K is a basic amino acid such as lysine, arginine, homoarginine, or ornithine;Q is L- or D-glutamic acid, d-aspartic acid, or D-.alpha.-aminoadipic acid;X is L-valine or L-isoleucine; andM is an L- or D-aminoacid having a hydrophobic side chain, or an ester or amide of such an acid.

    摘要翻译: 所公开的是可用于影响T淋巴细胞成熟的五肽,式+ TI,GKQXM,其中G是精氨酸,赖氨酸,鸟氨酸或高精氨酸,或是未取代或取代的ω-氨基烷酰基,ω-胍基烷酰基或 ω-二甲基氨基烷酰基; K是碱性氨基酸,如赖氨酸,精氨酸,高精氨酸或鸟氨酸; Q是L-或D-谷氨酸,d-天冬氨酸或D-α-氨基己二酸; X是L-缬氨酸或L-异亮氨酸; 并且M是具有疏水侧链的L-或D-氨基酸,或这种酸的酯或酰胺。

    Process for the manufacture of LH-RH and LH-RH analogs using
Glu-His(DnP)-OH
    9.
    发明授权
    Process for the manufacture of LH-RH and LH-RH analogs using Glu-His(DnP)-OH 失效
    使用Glu-His(DnP)-OH制备LH-RH和LH-RH类似物的方法

    公开(公告)号:US4275001A

    公开(公告)日:1981-06-23

    申请号:US120924

    申请日:1980-02-12

    摘要: What is disclosed is a method for the manufacture of LH-RH and LH-RH analogs, which comprises reacting Glu-His(DnP)-OH with the corresponding peptide having a free amino group and protected carboxy groups in a solvent as used in peptide chemistry and with the addition of 3-hydroxy-4-oxo-3,4-dihydro-1,2,3-benzotriazine (HOObt) and a carbodiimide and then splitting off the Dnp-(2,4-dinitrophenyl) group. The new method greatly reduces the degree of histidine racemization. The invention also provides a new dipeptide, i.e. Glu-His(Dnp)-OH.

    摘要翻译: 所公开的是用于制备LH-RH和LH-RH类似物的方法,其包括使Glu-His(DnP)-OH与相应的肽具有游离氨基和保护的羧基在溶剂中用于肽 并加入3-羟基-4-氧代-3,4-二氢-1,2,3-苯并三嗪(HOObt)和碳二亚胺,然后分离Dnp-(2,4-二硝基苯基)基团。 新方法大大降低了组氨酸外消旋化的程度。 本发明还提供了一种新的二肽,即Glu-His(Dnp)-OH。