Process for the one-stage resalting and purification of oligopeptides
    84.
    发明授权
    Process for the one-stage resalting and purification of oligopeptides 失效
    寡肽一步分离和纯化的方法

    公开(公告)号:US06258933B1

    公开(公告)日:2001-07-10

    申请号:US09276709

    申请日:1999-03-26

    IPC分类号: C07K116

    CPC分类号: C07K7/23 C07K1/122 C07K1/36

    摘要: The present invention relates to a process for the one-stage resalting and purification of oligopeptides. Oligopeptides are often not formed directly as acetates when synthesised. Acetate salts of oligopeptides are however desirable as bulk-active material for medical and formulation reasons. Processes known from the prior art have hitherto involved two separate steps or pyridine-containing solvents. The resalting and purification can be combined in one step and the use of pyridine as solvent can be avoided, if the oligopeptide in the form of its chloride salt is purified with an acetate-containing solvent by liquid chromatography methods.

    摘要翻译: 本发明涉及寡肽一步骤分离和纯化的方法。 当合成时,寡肽通常不直接形成为乙酸酯。 然而,寡肽的乙酸盐作为用于医学和制剂原因的体积活性材料是理想的。 已知现有技术的方法迄今涉及两个独立的步骤或含吡啶的溶剂。 如果用含有乙酸酯的溶剂通过液相色谱法纯化其氯化物盐形式的寡肽,则可以将脱盐和纯化结合在一个步骤中,并且可以避免使用吡啶作为溶剂。

    Herbicidal bicyclic and tricyclic imides
    86.
    发明授权
    Herbicidal bicyclic and tricyclic imides 失效
    除草双环和三环酰亚胺

    公开(公告)号:US5719104A

    公开(公告)日:1998-02-17

    申请号:US718337

    申请日:1996-10-03

    摘要: Bicyclic imides of formulae (I) and (II) and their agriculturally-suitable salts, are disclosed which are useful for controlling undesirable vegatation, wherein G is O or S; n and m are each independently 0; 1; 2; or 3; provided that m+n is 2 or 3; q is 1 or 2; X is CH.sub.2 ; CH(halogen); CF.sub.2 ; CHOCH.sub.2 F; CHOCF.sub.3 ; CHOCH.sub.2 CF.sub.3 ; O; S(O).sub.0-2 ; NH; N(C.sub.1 -C.sub.4 alkyl); or N(C.sub.1 -C.sub.4 haloalkyl); and R.sup.1. R.sup.2, and Q are as defined in the disclosure. Also disclosed are compositions containing the bicyclic imides of formulae (I) and (II) and a method for controlling growth of undesired vegetation comprising applying to the locus to be protected an effective amount, of the bicyclic imides formulae (I) and (II).

    摘要翻译: PCT No.PCT / US95 / 03932 Sec。 371日期:1996年10月3日 102(e)日期1996年10月3日PCT提交1995年4月6日PCT公布。 WO95 / 27698 PCT公开 (I)公开了式(I)和(II)的双环酰亚胺及其农业上合适的盐,其可用于控制不期望的食味,其中G为O 或S; n和m各自独立地为0; 1; 2; 或3; 条件是m + n为2或3; q为1或2; X为CH 2; CH(卤素); CF2; CHOCH2F; CHOCF3; CHOCH2CF3; O; S(O)0-2; NH; N(C 1 -C 4烷基); 或N(C 1 -C 4卤代烷基); 和R1。 R2和Q如本公开中所定义。 还公开了含有式(I)和(II)的双环酰亚胺的组合物和控制不想要的植物生长的方法,包括将有效量的双环酰亚胺式(I)和(II) 。

    N-acyl dipeptides and their compositions
    89.
    发明授权
    N-acyl dipeptides and their compositions 失效
    N-酰基二肽及其组成

    公开(公告)号:US5534538A

    公开(公告)日:1996-07-09

    申请号:US194568

    申请日:1994-02-10

    摘要: Novel a-acyl dipeptides of the formula:R.sup.2 --NH--CHR.sup.1 --O--ASin which AS, R.sup.1 and R.sup.2 have certain, more precisely defined meanings. These N-acyl dipeptides are more stable under conditions of sterilization (121.degree. C.) than corresponding, non-acylated dipeptides. On the other hand, they are cleaved more rapidly and more completely at the peptide bond in the living organism than the cleavage of the acyl group from simple N-acyl amino acids takes place. They can therefore be used with advantage as a source for the carbon terminal amino acid in mixtures and solutions for artificial nutrition or in culture media for cell cultures.

    摘要翻译: 新型α-酰基二肽,其分子式为:R2-NH-CHR1-O-AS,其中AS,R1和R2具有一定的更精确定义的含义。 这些N-酰基二肽在灭菌(121℃)条件下比相应的非酰化二肽更稳定。 另一方面,它们在活体中的肽键处比从简单的N-酰基氨基酸裂解酰基更快速和更完全地裂解。 因此,它们可以有利地用作人造营养物质或培养基中混合物和溶液中碳末端氨基酸的来源。