Process for preparing substituted chroman derivatives
    2.
    发明授权
    Process for preparing substituted chroman derivatives 失效
    取代苯并二氢吡喃衍生物的制备方法

    公开(公告)号:US6136986A

    公开(公告)日:2000-10-24

    申请号:US459727

    申请日:1999-12-13

    摘要: The invention relates to a process for preparing substituted chroman derivatives of the general formula VII, ##STR1## where X is the group --CN, --COOR.sup.3, --CHO, --CH.sub.2 OR.sup.7 or --CH(OR.sup.8).sub.2,R.sup.2 is a C.sub.1 -C.sub.23 -alkyl, C.sub.2 -C.sub.23 -alkenyl, C.sub.6 -C.sub.18 -aryl or C.sub.7 -C.sub.18 -aralkyl radical,R.sup.3 is hydrogen or an optionally substituted C.sub.1 -C.sub.4 -alkyl radical,R.sup.4, R.sup.5, R.sup.6 are, independently of one another, hydrogen or a C.sub.1 -C.sub.4 -alkyl radical,R.sup.7 is hydrogen or a C.sub.1 -C.sub.4 -alkyl radical,R.sup.8 is a C.sub.1 -C.sub.4 -alkyl radical, or the two radicals are a C.sub.2 -C.sub.6 -alkylene radical which links the two oxygen atoms to form a cyclic acetal and is optionally branched or may carry one or two carboxyl groups, cyclohexyl or phenyl radicals,and to the novel intermediates of the process.

    摘要翻译: 本发明涉及制备通式VII取代的苯并二氢吡喃衍生物的方法,其中X为基团-CN,-COOR 3,-CHO,-CH 2 OR 7或-CH(OR 8)2,R 2为C 1 -C 23 - 烷基, C 2 -C 23 - 烯基,C 6 -C 18 - 芳基或C 7 -C 18 - 芳烷基,R 3是氢或任选取代的C 1 -C 4烷基,R 4,R 5,R 6彼此独立地是氢或C1- C 4 - 烷基,R 7是氢或C 1 -C 4 - 烷基,R 8是C 1 -C 4烷基,或两个基团是连接两个氧原子以形成环状缩醛的C 2 -C 6亚烷基 并且任选地支链或可以携带一个或两个羧基,环己基或苯基,以及该方法的新中间体。

    Method For Producing Optically Active Alcohols From Alkanones Using a Dehydrogenase of Azoarcus
    5.
    发明申请
    Method For Producing Optically Active Alcohols From Alkanones Using a Dehydrogenase of Azoarcus 有权
    使用Azoarcus脱氢酶从烷醇生产光活性醇的方法

    公开(公告)号:US20080206824A1

    公开(公告)日:2008-08-28

    申请号:US11579292

    申请日:2005-05-04

    IPC分类号: C12P17/00 C12P7/22

    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,R 1表示卤素,SH,OH,NO 2,NR 2/3/3或3/3/3/3/4/4 / 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,将选自脱氢酶,醛还原酶和羰基还原酶的酶(E)在含有式(II)的烷酮的培养基中温育,其中n,Cyc和R 1 如上所述,在还原当量的存在下。 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 production of (s)-3-methylamino-1-(thien-2-yl)propan-1-ol
    7.
    发明申请
    Method for the production of (s)-3-methylamino-1-(thien-2-yl)propan-1-ol 有权
    (S)-3-甲基氨基-1-(噻吩-2-基)丙-1-醇的制备方法

    公开(公告)号:US20050245749A1

    公开(公告)日:2005-11-03

    申请号:US10522888

    申请日:2003-07-31

    申请人: Rainer Sturmer

    发明人: Rainer Sturmer

    IPC分类号: C07D333/20 C07D333/22

    CPC分类号: C07D333/20 C07B2200/07

    摘要: The present invention relates to a process for the preparation of enantiomerically pure (S)-3-methyl-amino-1-(thien-2-yl)propan-1-ol of the formula II-S by obtainment of (S)-3-hydroxy-3-thien-2-ylpropio-nitrile from its enantiomer mixture with the R isomer and the subsequent reaction of (S)-3-hydroxy-3-thien-2-ylpropionitrile with hydrogen and methylamine in the presence of a catalyst to give II-S.

    摘要翻译: 本发明涉及制备式II-S的对映体纯(S)-3-甲基 - 氨基-1-(噻吩-2-基)丙-1-醇的方法,通过获得(S) - (S)-3-羟基-3-噻吩-2-基丙腈与氢和甲胺在其对映异构体混合物存在下反应,得到3-羟基-3-噻吩-2-基丙腈, 催化剂得到II-S。