Oxanilide U-V absorbers
    91.
    发明授权
    Oxanilide U-V absorbers 失效
    壬酰苯胺U-V吸收剂

    公开(公告)号:US5847196A

    公开(公告)日:1998-12-08

    申请号:US944751

    申请日:1997-10-06

    CPC分类号: C07C233/56 C08K5/20

    摘要: Oxalic acid diarylamides are described as useful monomers and comonomers in the polymerization of polycarbonates. The resin products resist degradation by ultra-violet light radiation. They can also be incorporated as comonomer or monomer in the polyester, polyester, polyether, polyethersulfone resins. They can also be used as UV stabilizers in the aforemetioned systems.

    摘要翻译: 在聚碳酸酯的聚合中,草酸二芳基酰胺被描述为有用的单体和共聚单体。 树脂产品可以防紫外光辐射降解。 它们也可以作为共聚单体或单体引入聚酯,聚酯,聚醚,聚醚砜树脂中。 它们也可以用作上述系统中的UV稳定剂。

    Process for the preparation of carbazates
    92.
    发明授权
    Process for the preparation of carbazates 失效
    制备肼基甲酸酯的方法

    公开(公告)号:US5756824A

    公开(公告)日:1998-05-26

    申请号:US730627

    申请日:1996-10-21

    IPC分类号: C07C281/02 C07C261/00

    CPC分类号: C07C281/02

    摘要: Alkyl carbazates of the formula R.sup.1 --O--CO--NH--NH.sub.2 (I) are prepared in an advantageous manner by reacting an alkyl carbazate of the formula R.sup.2 --O--CO--NH--NH.sub.2 (II) with alcohols of the formula R.sup.1 --OH (III) in the presence of a catalyst, where the symbols used in the formulae are as defined in the description.

    摘要翻译: 通过使式R 2 -O-CO-NH-NH 2(II)的肼基甲酸烷基酯与式R1-0的醇反应制备式R 1 -O-CO-NH-NH 2(I)的烷基肼基甲酸酯, OH(III)在催化剂存在下进行,其中式中使用的符号如说明书中所定义。

    Arginine derivatives, process of preparation, uses, and compositions
comprising them
    95.
    发明授权
    Arginine derivatives, process of preparation, uses, and compositions comprising them 失效
    精氨酸衍生物,制备方法,用途和包含它们的组合物

    公开(公告)号:US5679829A

    公开(公告)日:1997-10-21

    申请号:US590445

    申请日:1996-01-23

    摘要: New arginine derivatives containing an N.sup..alpha. -alkyloxycarbonyl group of formula (I) ##STR1## in which R represents a linear or branched alkyl radical having from 8 to 22 carbon atoms, salts thereof, and mixtures of the derivatives and the salts. A process for the preparation of these derivatives, salts, and mixtures and use of such derivatives, salts, and mixtures, especially in cosmetics. Compositions, especially cosmetic compositions, comprising the derivatives, salts, and mixtures.

    摘要翻译: 含有式(I)的Nα-烷氧基羰基(IMA)的新的精氨酸衍生物,其中R表示具有8至22个碳原子的直链或支链烷基,其盐,以及衍生物和盐的混合物。 这些衍生物,盐和混合物的制备方法以及这些衍生物,盐和混合物的使用,特别是在化妆品中。 包含衍生物,盐和混合物的组合物,特别是化妆品组合物。

    Metal-ligating amino acid derivatives for MRI and for peptide synthesis
    96.
    发明授权
    Metal-ligating amino acid derivatives for MRI and for peptide synthesis 失效
    用于MRI和肽合成的金属结合氨基酸衍生物

    公开(公告)号:US5637759A

    公开(公告)日:1997-06-10

    申请号:US923226

    申请日:1992-07-30

    摘要: Novel organic compounds and metal ion-containing amino acid chelates are described which are useful in solid phase synthesis of polypeptides and as magnetic resonance imaging (MRI) enhancing agents. The present invention also relates to a convenient and straightforward method to synthesize a metal-ligating amino acid suitable as MRI enhancing agents or for introducing a strong metal binding site at any chosen position in a peptide. Some compounds are designed to be compatible with N-.alpha.-Fmoc peptide synthesis strategy, and can easily be prepared on large scale. Thus, flexible linkers of different lengths and containing various structures can be placed between the .alpha.-carbon backbone of peptides and metal binding moieties. These peptides will provide a variety of affinity cleaving reagents which can be directed against protein or nucleic acid targets. Therefore, these molecules can serve as an important tool to study protein folding, protein-protein and protein-nucleic acid interactions.

    摘要翻译: 描述了新的有机化合物和含金属离子的氨基酸螯合物,其可用于多相固相合成和磁共振成像(MRI)增强剂。 本发明还涉及合成适合作为MRI增强剂的金属结合氨基酸或在肽中任何选定位置引入强金属结合位点的方便且直接的方法。 一些化合物被设计为与N-α-Fmoc肽合成策略相容,并且可以容易地大规模制备。 因此,可以将不同长度和包含各种结构的柔性接头置于肽的α-碳骨架和金属结合部分之间。 这些肽将提供可针对蛋白质或核酸靶标的多种亲和力切割试剂。 因此,这些分子可以作为研究蛋白质折叠,蛋白质 - 蛋白质和蛋白质 - 核酸相互作用的重要工具。