PROCESS FOR THE PREPARATION OF OPTICALLY ACTIVE 2- 6-(HYDROXYMETHYL)-1,3-DIOXAN-4-YL]ACETIC ACID DERIVATIVES
    2.
    发明公开
    PROCESS FOR THE PREPARATION OF OPTICALLY ACTIVE 2- 6-(HYDROXYMETHYL)-1,3-DIOXAN-4-YL]ACETIC ACID DERIVATIVES 有权
    VERFAHREN ZUR HERSTELLUNG OPTISCH AKTIVER 2- [6-(羟甲基)-1,3-二氧戊环-4-基] - 维生素D

    公开(公告)号:EP1024139A4

    公开(公告)日:2002-04-17

    申请号:EP99935066

    申请日:1999-08-05

    Applicant: KANEKA CORP

    Abstract: A process for the preparation of optically active 2-[6-(hydroxymethyl)-1,3-dioxan-4-yl]acetic acid derivatives, which comprises subjecting an enolate prepared by reacting an acetate ester derivative with either a base or a zero-valent metal to reaction with a hydroxybutyric acid derivative at -30 °C or above to thereby obtain a hydroxyoxohexanoic acid derivative, reducing this hydroxyoxohexanoic acid derivative with a microorganism into a dihydroxyhexanoic acid derivative, treating this dihydroxyhexanoic acid derivative with an acetal-forming reactant in the presence of an acid to thereby obtain a halomethyldioxanylacetic acid derivative, acyloxylating this halomethyldioxanylacetic acid derivative with an acyloxylating agent into an acyloxymethyldioxanylacetic acid derivative, and subjecting this acyloxymethyldioxanylacetic acid derivative to solvolysis in the presence of a base.

    Abstract translation: 本发明提供了一种从廉价起始原料生产具有价值作为药物中间体的光学活性2-Ä6-(羟甲基)-1,3-二恶烷-4-基乙酸衍生物的方法,而不使用任何特殊设备,例如 超低温反应需要。 制备光学活性2-δ-(羟甲基)-1,3-二恶烷-4-基乙酸衍生物的方法,其包括使不饱和-30℃的乙酸衍生物与烯醇化物反应 通过使碱价或0价金属作用于衍生物以制备羟基己酸衍生物而制备,借助于微生物菌株将该化合物还原,得到卤代甲基二恶烷基乙酸衍生物,用缩醛化处理该化合物 在酸催化剂存在下反应,得到卤代甲基二恶烷基乙酸衍生物,与酰氧基化剂反应,得到酰氧基甲基二恶烷基乙酸衍生物,并在碱的存在下使其溶解。

    4.
    发明专利
    未知

    公开(公告)号:DE69841075D1

    公开(公告)日:2009-10-01

    申请号:DE69841075

    申请日:1998-04-20

    Applicant: KANEKA CORP

    Abstract: A process for efficiently producing optically active amino compounds, mainly (R)-amino compounds, at a low cost by means of a microbial enzyme; a polypeptide suitable for use in the production process and having a stereoselective transaminase activity; and a DNA coding for the polypeptide. The process is characterized by comprising causing a transaminase to act on a ketone compound as an amino acceptor in the presence of a primary amine as an amino donor to stereoselectively transfer the amino group to thus obtain an optically active amino compound. The DNA contains a base sequence coding for a polypeptide having a stereoselective transaminase activity. The polypeptide can be obtained by incubating a microorganism belonging to the genus Arthrobacter.

    PROCEDIMIENTO PARA LA PREPARACION DE ESTERES SUSTITUIDOS CON 3,5-DIHIDROXI COMO INTERMEDIOS PARA PRODUCIR DERIVADOS DE ACIDO 2-(6-HIXIMETIL)-1,3-DIOXAN-4-IL) ACETICO OPTICAMENTE ACTIVOS.

    公开(公告)号:ES2294236T3

    公开(公告)日:2008-04-01

    申请号:ES03025159

    申请日:1999-08-05

    Applicant: KANEKA CORP

    Abstract: Un proceso para producir un compuesto de la siguiente fórmula general (V): en la cual R1 y X1 son como se definen más abajo, que comprende someter un compuesto de la siguiente fórmula (IV): en la cual R1 representa hidrógeno, un grupo alquilo de 1 a 12 átomos de carbono, un grupo arilo de 6 a 12 átomos de carbono o un grupo aralquilo de 7 a 12 átomos de carbono, X1 representa un átomo de halógeno, a reacción de reducción con la ayuda de una cepa de microorganismo, donde la cepa de microorganismo se selecciona de géneros y especies de microorganismos pertenecientes a: Hormoascus platypodis, Candida catenulata, Candida diversa, Candida fructus, Candida glaebosa, Cryptococcus humicola, Candida intermedia, Candida magnoliae, Candida musae, Candida pintolopesii var. pintolopenii, Candida pinus, Candida sake, Candida sonorensis, Candida tropicalis, Cryptococcus laurentii, Cryptococcus terreus, Debaryomyces hansenii var. fabryi, Geotrichum eriense, Kuraishia capsulata, Kluyveromyces marxianus, Pichia bovis, Yamadazyma haplophila, Rhodotorula glutinis, Saccharomyces cerevisiae, Schizoblastosporon kobayasii, Candida clausenii, Debaryomyces robertsii, Zygosaccharomyces rouxii, Brevibacterium stationis, Corynebacterium ammoniagenes, Corynebacterium flavescens, Corynebacterium glutamicum, y Rhodococcus erythropolis.

    7.
    发明专利
    未知

    公开(公告)号:DE60018909T2

    公开(公告)日:2006-03-30

    申请号:DE60018909

    申请日:2000-11-24

    Applicant: KANEKA CORP

    Abstract: A novel polypeptide for producing tert-butyl (3R,5S)-6-chloro-3,5-dihydroxyhexanoate, a gene encoding the polypeptide, and a method of using the polypeptide, are provided. The polypeptide has an enzyme activity to asymmetrically reduce tert-butyl (S)-6-chloro-5-hydroxy-3-oxohexanoate to tert-butyl (3R,5S)-6-chloro-3,5-dihydroxyhexanoate. The polypeptide comprises the amino acid sequence represented by SEQ ID NO. 1 in the Sequence Listing, or the amino acid sequence having at least one amino acid substitution, insertion, deletion, or addition thereof.

    NUEVA REDUCTASA DE CARBONILO, SU GEN Y SU PROCEDIMIENTO DE UTILIZACION.

    公开(公告)号:ES2240205T3

    公开(公告)日:2005-10-16

    申请号:ES00977938

    申请日:2000-11-24

    Applicant: KANEKA CORP

    Abstract: Un polinucleótido que codifica un polipéptido que tiene una actividad enzimática para reducir asimétricamente el (S)-6-cloro-5-hidroxi-3-oxohexanoato de terc-butilo a (3R, 5S)-6-cloro-3, 5-dihidroxihexanoato de terc-butilo, en el que el polinucleótido es seleccionado entre el grupo que consta de: (a) Polinucleótidos que codifican un polipéptido que comprenden la secuencia de aminoácidos representados por el Nº de ID de SEQ: 1 en el listado de secuencias; (b) Polinucleótidos que comprenden la secuencia de nucleótidos del Nº de ID de SEQ: 2 en el listado de secuencias; y (c) Polinucleótidos que hibridizan con las secuencias de nucleótidos representadas por el Nº de ID de SEQ: 2 en el listado de secuencias en condiciones severas.

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