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    Process for the preparation of 5'-ribonucleotides
    5.
    发明授权
    Process for the preparation of 5'-ribonucleotides 失效
    制备5'-核糖核苷酸的方法

    公开(公告)号：US4649111A

    公开(公告)日：1987-03-10

    申请号：US764967

    申请日：1985-08-12

    申请人： Reinhold Keller ,  Merten Schlingmann

    发明人： Reinhold Keller ,  Merten Schlingmann

    IPC分类号： C12P19/32 ,  C07H19/16 ,  C07H19/20 ,  C07H21/00 ,  C12N11/08 ,  C12N11/12 ,  C12P19/30 ,  C12N11/02

    CPC分类号： C07H19/16 ,  C07H19/20 ,  C12N11/08 ,  C12N11/12 ,  C12P19/30

    摘要： Ribonucleic acid in a mixture of crude nucleic acids is selectively hydrolyzed with 5'-phosphodiesterase to 5'-ribonucleotides without hydrolyzing desoxyribonucleic acid in the mixture. Selective hydrolysis is carrying out by contacting the crude nucleic acid mixture with 5'-phosphodiesterase immobilized on a polymer carrier. The crude mixture of nucleic acids is preferably obtained by aqueous extraction of microorganisms that have previously been extracted with ammonia and a lower alcohol to remove lipids. The polymer carrier is preferably a copolymer of glycidylmethacrylate, allylglycidylether, methacrylamide and methylene-bis-methacrylamide.

    摘要翻译： 将粗核酸混合物中的核糖核酸与5'-磷酸二酯酶选择性水解成5'-核糖核苷酸，而不会水解脱氧核糖核酸在混合物中。 通过使粗核酸混合物与固定在聚合物载体上的5'-磷酸二酯酶接触来进行选择性水解。 核酸的粗混合物优选通过水提取先前用氨和低级醇萃取以除去脂质的微生物获得。 聚合物载体优选为甲基丙烯酸缩水甘油酯，烯丙基缩水甘油醚，甲基丙烯酰胺和亚甲基双 - 甲基丙烯酰胺的共聚物。

    Copolymer, process for its preparation and its use as a sorbent
    6.
    发明授权
    Copolymer, process for its preparation and its use as a sorbent 失效
    共聚物，其制备方法及其作为吸附剂的用途

    公开(公告)号：US4576973A

    公开(公告)日：1986-03-18

    申请号：US623708

    申请日：1984-06-22

    申请人： Karl-Heinz Keil ,  Fritz Engelhardt ,  Ulrich Greiner ,  Klaus Kuhlein ,  Reinhold Keller ,  Merten Schlingmann ,  Gerhard Hess

    发明人： Karl-Heinz Keil ,  Fritz Engelhardt ,  Ulrich Greiner ,  Klaus Kuhlein ,  Reinhold Keller ,  Merten Schlingmann ,  Gerhard Hess

    IPC分类号： C08F26/00 ,  B01J20/26 ,  B01J41/14 ,  C08F2/18 ,  C08F30/00 ,  C08F30/04 ,  C08F30/08 ,  C08F226/06 ,  C08J9/00

    CPC分类号： C08F226/06 ,  B01J20/26

    摘要： The crosslinked, porous copolymer in the form of beads and containing 50 to 99.9% by weight of recurring units of a heterocyclic 5-membered ring compound which contains a polymerizable olefinic group and which has at least one protonizable nitrogen atom in the ring, 0.1 to 50% by weight of units of a crosslinking agent, 0 to 25% by weight of units of a polymerizable organoboron or organosilicon compound and, relative to 100% by weight of the sum of the abovementioned units, 5 to 350% by weight of units of an N-vinylamide of the general formula I CH.sub.2 .dbd.CH--N(R.sup.1)--C(R.sup.2).dbd.O wherein R.sup.1 denotes hydrogen, methyl or ethyl and R.sup.2 denotes hydrogen or C.sub.1 -C.sub.3 -alkyl, or several such N-vinylamides and 0 to 40% by weight of units of another polymerizable compound or several such compounds, is prepared by inverted suspension polymerization and is used, for example, as a sorbent for acid substances from solutions thereof, preferably aqueous solutions.

    摘要翻译： 珠粒形式的交联的多孔共聚物，其含有50-99.9重量％的含有可聚合烯基的杂环5元环化合物的重复单元，该环化合物在环中具有至少一个可质子化的氮原子，0.1至 50重量％的交联剂单元，0〜25重量％的可聚合有机硼或有机硅化合物的单元，相对于100重量％的上述单元的总和，为5〜350重量％的单元 的通式I CH 2 = CH-N（R 1）-C（R 2）= O的N-乙烯基酰胺，其中R 1表示氢，甲基或乙基，R 2表示氢或C 1 -C 3烷基，或几个这样的N-乙烯基酰胺 和0〜40重量％的其它可聚合化合物或几种这样的化合物的单元通过反相悬浮聚合制备，并且例如用作其溶液，优选水溶液中的酸性物质的吸附剂。