Method for producing biotin
    85.
    发明授权
    Method for producing biotin 失效
    生物素生产方法

    公开(公告)号:US06436681B1

    公开(公告)日:2002-08-20

    申请号:US09462645

    申请日:2000-01-11

    IPC分类号: C12P1718

    CPC分类号: C12N9/13 C12N15/52 C12P17/186

    摘要: A gene construct comprising a biotin gene having the sequence SEQ ID No. 1 or SEQ ID No. 3, organisms which comprise this gene construct, the use of these sequences or of the gene construct for preparing biotin, and a process for preparing biotin are described.

    摘要翻译: 包含具有序列SEQ ID No.1或SEQ ID No.3的生物素基因的基因构建体,包含该基因构建体的生物体,这些序列或基因构建体用于制备生物素的用途以及制备生物素的方法是 描述。

    Process for preparing urethane-containing (meth)acrylic esters
    87.
    发明授权
    Process for preparing urethane-containing (meth)acrylic esters 有权
    制备含氨基甲酸酯(甲基)丙烯酸酯的方法

    公开(公告)号:US08399225B2

    公开(公告)日:2013-03-19

    申请号:US12776670

    申请日:2010-05-10

    IPC分类号: C12P7/60

    CPC分类号: C12P13/02 C12P7/62

    摘要: The invention relates to a process for preparing urethane-containing acrylic- and (meth)acrylic esters by reacting a urethane-containing alcohol with a reactant acrylic- or (meth)acrylic ester of a saturated alcohol in the presence of at least one polymerization inhibitor and an enzyme as a catalyst within a reactor, wherein the saturated alcohol released in the process and optionally an entraining agent form an azeotrope with an excess of the reactant (meth)acrylic ester, such that the azeotrope is removed by distillation under reduced pressure and at least one substream from the bottom of the reactor is circulated through the top of the distillation column. Using this process, urethane-containing acrylic- and (meth)acrylic esters are prepared in high yields and high purities under mild conditions from economically obtainable reactants with no significant polymer formation.

    摘要翻译: 本发明涉及通过使含氨基甲酸酯的醇与饱和醇的反应性丙烯酸或(甲基)丙烯酸酯在至少一种聚合抑制剂的存在下反应来制备含氨基甲酸酯的丙烯酸和(甲基)丙烯酸酯的方法 和作为反应器内的催化剂的酶,其中在该方法中释放的饱和醇和任选的夹带剂与过量的反应物(甲基)丙烯酸酯形成共沸物,使得通过减压蒸馏除去共沸物, 来自反应器底部的至少一个子流通过蒸馏塔的顶部循环。 使用该方法,在温和条件下从经济可获得的反应物中以高产率和高纯度制备含氨基甲酸酯的丙烯酸酯和(甲基)丙烯酸酯,没有显着的聚合物形成。

    Method for the enzymatic reduction of alkyne derivates
    90.
    发明授权
    Method for the enzymatic reduction of alkyne derivates 有权
    炔烃衍生物的酶还原方法

    公开(公告)号:US08227218B2

    公开(公告)日:2012-07-24

    申请号:US12439427

    申请日:2007-08-30

    IPC分类号: C12P7/26

    CPC分类号: C12P7/26 C12N9/0036

    摘要: The invention relates to a method for the enzymatic reduction of alkyne derivatives of the formula (1), wherein R1 represents H, C1-C6-alkyl, C2-C6-alkenyl, or an optionally substituted carbocyclic or heterocyclic, aromatic or non-aromatic group, R2 represents H, C1-C6-alkyl, C2-C6-alkenyl, by reaction in the presence of special reductases.

    摘要翻译: 本发明涉及一种用于酶还原式(1)的炔衍生物的方法,其中R 1表示H,C 1 -C 6 - 烷基,C 2 -C 6 - 烯基或任选取代的碳环或杂环,芳族或非芳族 基团,R2表示H,C1-C6-烷基,C2-C6-烯基,通过在特殊的还原酶存在下反应。