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    • 4. 发明授权
    • Method for producing optically active alcohols from alkanones using a dehydrogenase of azoarcus
    • 使用azoarcus脱氢酶从链烷醇生产光学活性醇的方法
    • US07785847B2
    • 2010-08-31
    • US11579292
    • 2005-05-04
    • Rainer StürmerMaria KeβelerBernhard HaurThomas FriedrichMichael BreuerHartwig Schröder
    • Rainer StürmerMaria KeβelerBernhard HaurThomas FriedrichMichael BreuerHartwig Schröder
    • C12P7/22C12P7/04C12P17/00C12N9/04C12N9/14C12N1/20C07H21/04
    • C07D333/22C07D333/16C12P17/00
    • 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.
    • 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)。
    • 7. 发明授权
    • Process for preparing heterocyclic (R)- and (S)-cyanohydrins
    • 制备杂环(R) - 和(S) - 氰基醇的方法
    • US07052885B2
    • 2006-05-30
    • US10325922
    • 2002-12-23
    • Peter PoechlauerWolfgang SkrancHerbert MayrhoferIrma WirthRudolf NeuhoferHerfried GrienglMartin Fechter
    • Peter PoechlauerWolfgang SkrancHerbert MayrhoferIrma WirthRudolf NeuhoferHerfried GrienglMartin Fechter
    • C12P17/00C12P17/02C12P17/04C12P17/06C12P17/18
    • C12P13/004C12P17/00C12P17/04
    • A process for preparing enantiomer-enriched heterocyclic (R)- and (S)-cyanohydrins of the formula (I), where R1, R2, R3, R4 independently of one another are H, an unsubstituted or substituted C1–C24-alkyl, alkenyl or alkynyl radical, where one or more carbon atoms in the chain can be replaced by an oxygen atom, a nitrogen atom, a sulfur atom, an SO or an SO2 group, an unsubstituted or substituted aryl or heteroaryl radical or heterocyclic radical or halogen, hydroxyl, NR5R6, acetyl, oxo, C1–C6-carbalkoxy, C1–C6-carbalkoxyamino, COOR7, cyano, amide, benzoylamino or NO2,R5 and R6 are H, C1–C6-alkyl radical, phenyl radical, benzyl radical or COOR7, or together form a C2–C8-alkylene or heteroalkylene radical,R7 is H or C1–C6-alkyl,n is 0, 1, 2 or 3,X, Y and Z can be an unsubstituted or substituted carbon atom or a radical selected from the group consisting of N, O, S or NR5R6, where R5 and R6 are as defined above, SO or SO2, and at least one of the radicals X, Y and Z is not a carbon atom, where the compounds of the formula (I) can have one or more double bonds in the ring, with the proviso that in a 5-membered ring the double bond is not conjugated with the —C(OH)CN-group, and/or can be anellated and/or bridged,by reacting a ketone of the formula (II), where R1, R2, R3, R4, X, Y, Z and n have the meanings above, with an (R)- or (S)-hydroxynitrile lyase in an organic, aqueous or two-phase system, or in emulsion, in the presence of a cyanide group donor.
    • 制备式(I)的对映异构体富集的杂环(R) - 和(S) - 氰基醇的方法,其中R 1,R 2,R 3,R 4彼此独立地是H,未取代或取代的C 1 - 链烯基或炔基,其中链中的一个或多个碳原子可以被氧原子,氮原子,硫原子,SO或 SO 2 2基团,未取代或取代的芳基或杂芳基或杂环基或卤素,羟基,NR 5 R 6,乙酰基,氧代C 1 -C 6 - 亚烷基氧基,C 1 -C 6 - 烷氧基氨基,COOR 7,氰基,酰胺,苯甲酰氨基或NO 2,R 5和R 6是H C 1 -C 6 - 烷基,苯基,苄基或COOR 7,或一起形成C 1 -C 6 - 8亚烷基或杂亚烷基,R 7是H或C 1 -C 6 - 烷基,n是0,1,2或3,X,Y 并且Z可以是未取代或取代的碳原子或选自它的基团 由N,O,S或NR5R6组成的基团,其中R 5和R 6如上定义,SO或SO 2,并且基团X,Y和Z中的至少一个不是碳 原子,其中式(I)的化合物可以在环中具有一个或多个双键,条件是在5元环中双键不与-C(OH)CN-基团共轭,并且 /或可以通过使式(II)的酮(其中R 1,R 2,R 3,R 4,X,Y,Z和n具有上述含义)与(R) - 或( S) - 羟基腈裂解酶在有机,水相或两相体系中,或在乳液中,在氰化物基团给体存在下。