Process for the enzymatic preparation of citronellal
    3.
    发明授权
    Process for the enzymatic preparation of citronellal 有权
    香茅醛酶的制备方法

    公开(公告)号:US08206957B2

    公开(公告)日:2012-06-26

    申请号:US12159531

    申请日:2006-12-19

    IPC分类号: C12P7/24

    CPC分类号: C12P7/24 C12N9/001

    摘要: A process for preparing optically active saturated aldehydes or alcohols of the formula (2) from α,β-unsaturated aldehydes of the formula (1) by reduction in the presence of an enoate reductase (i) having the polypeptide sequence SEQ ID No. 1 or 2, or (ii) having a polypeptide sequence which is at least 80% identical to the sequence of SEQ ID No. 1 or 2.

    摘要翻译: 通过在具有多肽序列SEQ ID No.的烯酸还原酶(i)的存在下还原从式(1)的α,β-不饱和醛制备式(2)的旋光性饱和醛或醇的方法。 1或2,或(ii)具有与SEQ ID No.1或2的序列至少80%相同的多肽序列。

    Method for producing optically active alcohols from alkanones using a dehydrogenase of azoarcus
    9.
    发明授权
    Method for producing optically active alcohols from alkanones using a dehydrogenase of azoarcus 有权
    使用azoarcus脱氢酶从链烷醇生产光学活性醇的方法

    公开(公告)号:US07785847B2

    公开(公告)日:2010-08-31

    申请号:US11579292

    申请日:2005-05-04

    摘要: The invention relates to a method for producing the optically active alkanols of formula (I), wherein n is an integer of from 0 to 5; Cyc represents an optionally substituted, mononuclear or polynuclear, saturated or unsaturated, carbocylic or heterocyclic ring, and R1 represents halogen, SH, OH, NO2, NR2R3 or NR2R3R4+X−, wherein R2, R3 and R4 independently represent H or a lower alkyl or lower alkoxy group and X− represents a counterion. According to the invention, an enzyme (E) selected from the groups of dehydrogenases, aldehyde reductases and carbonyl reductases is incubated in a medium containing the alkanone of formula (II), wherein n, Cyc and R1 are defined as above, in the presence of reduction equivalents. The compound of formula (II) is enzymatically reduced to the compound of formula (I) and the reduction equivalents consumed during reaction are regenerated by reacting a sacrificial alcohol to the corresponding sacrificial ketone using enzyme (E) and at least partially removing the sacrificial ketone from the reaction medium, and then isolating the product (I) so produced.

    摘要翻译: 本发明涉及一种制备式(I)的光学活性链烷醇的方法,其中n为0-5的整数; Cyc表示任选取代的单核或多核,饱和或不饱和的碳环或杂环,并且R 1表示卤素,SH,OH,NO 2,NR 2 R 3或NR 2 R 3 R 4 + X - ,其中R 2,R 3和R 4独立地表示H或低级烷基 或低级烷氧基,X-表示抗衡离子。 根据本发明,在含有式(II)的烷酮的培养基中温育选自脱氢酶,醛还原酶和羰基还原酶的酶的酶(E),其中n,R 1和R 1如上定义,在存在下 的还原当量。 将式(II)化合物酶还原成式(I)化合物,并且通过使用酶(E)使牺牲醇与相应的牺牲酮反应,并且至少部分除去牺牲酮来再生反应期间消耗的还原当量 从反应介质中分离出如此制备的产物(I)。

    Method For The Enzymatic Reduction Of Alkyne Derivates
    10.
    发明申请
    Method For The Enzymatic Reduction Of Alkyne Derivates 有权
    酶催化还原炔烃衍生物的方法

    公开(公告)号:US20100009421A1

    公开(公告)日:2010-01-14

    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。