METHOD FOR PRODUCING OPTICALLY ACTIVE AMINOALCOHOL DERIVATIVE
    1.
    发明申请
    METHOD FOR PRODUCING OPTICALLY ACTIVE AMINOALCOHOL DERIVATIVE 审中-公开
    生产光学活性氨基醇衍生物的方法

    公开(公告)号:US20110077427A1

    公开(公告)日:2011-03-31

    申请号:US12993665

    申请日:2009-05-19

    IPC分类号: C07C321/30 C07C319/28

    摘要: Disclosed is a preparation method which makes it possible to produce an aminoalcohol derivative having a high optical purity and to enable the large scale synthesis thereof at a low price.For instance, a compound represented by the following general formula (8) is recrystallized in the course of the production process thereof: In this case, R1 represents, for instance, a trihalomethyl group; R2 represents, for instance, a hydrogen atom; R3 represents, for instance, a halogen atom; R4 represents, for instance, a lower alkyl group; X represents, for instance, a sulfur atom; n represents an integer ranging from 1 to 4; and W represents hydrogen chloride or hydrogen bromide.

    摘要翻译: 公开了一种制备方法,其可以制备具有高光学纯度的氨基醇衍生物,并且能够以低价格进行大规模合成。 例如,由以下通式(8)表示的化合物在其制造方法中重结晶:在这种情况下,R 1表示例如三卤代甲基; R2表示例如氢原子; R3表示例如卤素原子; R4表示例如低级烷基; X表示例如硫原子; n表示1〜4的整数, W表示氯化氢或溴化氢。

    MALEIC ACID SALT AND CRYSTAL THEREOF
    2.
    发明申请
    MALEIC ACID SALT AND CRYSTAL THEREOF 审中-公开
    马来酸盐和水晶

    公开(公告)号:US20120245346A1

    公开(公告)日:2012-09-27

    申请号:US13498114

    申请日:2010-09-27

    IPC分类号: C07D413/14

    CPC分类号: C07D413/14

    摘要: Disclosed is a benz[d][1,3]oxazine derivative having excellent stability when used as an active ingredient for a medicinal agent, and also having excellent solubility and crystallinity. Specifically disclosed is 2-[2-((S)-3-dimethylaminopyrrolidin-1-yl)pyridin-3-yl]-5-ethyl-7-methoxy-4H-benz[d][1,3]oxazin-4-one maleate.

    摘要翻译: 公开了当用作药剂的活性成分时具有优异稳定性的苯并[d] [1,3]恶嗪衍生物,并且也具有优异的溶解性和结晶度。 具体公开的是2- [2 - ((S)-3-二甲基氨基吡咯烷-1-基)吡啶-3-基] -5-乙基-7-甲氧基-4H-苯并[d] [1,3]恶嗪-4 - 马来酸盐。

    Process for producing 2-amino-2-[2-[4-(3-benzyloxyphenylthio)-2-chlorophenyl]ethyl]-1,3-propanediol hydrochloride and hydrates thereof, and intermediates in the production thereof
    4.
    发明授权
    Process for producing 2-amino-2-[2-[4-(3-benzyloxyphenylthio)-2-chlorophenyl]ethyl]-1,3-propanediol hydrochloride and hydrates thereof, and intermediates in the production thereof 有权
    制备2-氨基-2- [2- [4-(3-苄氧基苯硫基)-2-氯苯基]乙基] -1,3-丙二醇盐酸盐及其水合物的方法及其制备中间体

    公开(公告)号:US07795472B2

    公开(公告)日:2010-09-14

    申请号:US11665058

    申请日:2005-10-07

    摘要: A process for the industrial production of 2-amino-2-[2-[4-(3-benzyloxyphenylthio)-2-chlorophenyl]ethyl]-1,3-propanediol hydrochloride (Compound I), an effective immunosuppressant.The process for producing 2-amino-2-[2-[4-(3-benzyloxyphenylthio)-2-chlorophenyl]ethyl]-1,3-propanediol hydrochloride or a hydrate thereof includes the steps of reacting 4-(3-benzyloxyphenylthio)-2-chlorobenzaldehyde with ethyl diethylphosphonoacetate in a solvent in the presence of a base to form ethyl 3-[4-(3-benzyloxyphenylthio)-2-chlorophenyl]acrylate; reducing the resulting ethyl 3-[4-(3-benzyloxyphenylthio)-2-chlorophenyl]acrylate, followed by mesylation, iodination and nitration, to form 1-benzyloxy-3-[3-chloro-4-(3-nitropropyl)phenylthio]benzene; forming 2-[2-[4-(3-benzyloxyphenylthio)-2-chlorophenyl]ethyl]-2-nitro-1,3-propanediol using a formaldehyde solution; and reducing the resulting 2-[2-[4-(3-benzyloxyphenylthio)-2-chlorophenyl]ethyl]-2-nitro-1,3-propanediol to form the desired product.

    摘要翻译: 工业生产2-氨基-2- [2- [4-(3-苄氧基苯硫基)-2-氯苯基]乙基] -1,3-丙二醇盐酸盐(化合物I)的方法,一种有效的免疫抑制剂。 2-氨基-2- [2- [4-(3-苄氧基苯硫基)-2-氯苯基]乙基] -1,3-丙二醇盐酸盐或其水合物的制备方法包括使4-(3-苄氧基苯硫基 )-2-氯苯甲醛与二乙基膦酰基乙酸乙酯在溶剂中在碱存在下反应,生成3- [4-(3-苄氧基苯硫基)-2-氯苯基]丙烯酸乙酯; 将所得的3- [4-(3-苄氧基苯硫基)-2-氯苯基]丙烯酸乙酯还原,然后甲磺酰化,碘化和硝化,得到1-苄氧基-3- [3-氯-4-(3-硝基丙基)苯硫基 ]苯; 使用甲醛溶液形成2- [2- [4-(3-苄氧基苯硫基)-2-氯苯基]乙基] -2-硝基-1,3-丙二醇; 并还原得到的2- [2- [4-(3-苄氧基苯硫基)-2-氯苯基]乙基] -2-硝基-1,3-丙二醇以形成所需产物。

    METHOD FOR PRODUCING MALEATE USING WET CRYSTAL
    5.
    发明申请
    METHOD FOR PRODUCING MALEATE USING WET CRYSTAL 审中-公开
    使用水溶液生产胶体的方法

    公开(公告)号:US20130317214A1

    公开(公告)日:2013-11-28

    申请号:US13990380

    申请日:2011-11-30

    申请人: Takeshi Tsubuki

    发明人: Takeshi Tsubuki

    IPC分类号: C07D413/04

    摘要: [Problem] To efficiently (without carrying out column purification) provide a high-purity maleate having excellent storage stability, solubility, crystallinity and ease of handling according to the present invention.[Solution] This method for producing the maleate represented by formula (1) includes obtaining the compound represented by formula (2) by reacting the compound represented by formula (3) with the compound represented by formula (4) in the presence of a salt, precipitating crystals of the compound represented by formula (2) by mixing the obtained compound represented by formula (2) with acetone and water, and obtaining the maleate represented by formula (1) by adding maleic acid to an acetone solution of the compound represented by formula (2), prepared by dissolving the crystals of the obtained compound represented by formula (2) in acetone.

    摘要翻译: [问题]为了有效地(不进行柱纯化),提供根据本发明的具有优异的储存稳定性,溶解性,结晶性和易于处理的高纯度马来酸酯。 [解决方案]制备由式(1)表示的马来酸酯的方法包括通过使由式(3)表示的化合物与式(4)表示的化合物在盐的存在下反应而获得式(2)表示的化合物 通过将由式(2)表示的所得化合物与丙酮和水混合,沉淀出式(2)表示的化合物的晶体,并通过将马来酸加入到所述化合物的丙酮溶液中得到由式(1)表示的马来酸酯 通过将由式(2)表示的所得化合物的晶体溶解在丙酮中制备的式(2)。

    Process for Producing 2-Amino-2-[2-[4-(3-Benzyloxyphenylthio)-2-Chlorophenyl]Ethyl]-1,3-Propanediol Hydrochloride and Hydrates Thereof, and Intermediates in the Production Thereof
    6.
    发明申请
    Process for Producing 2-Amino-2-[2-[4-(3-Benzyloxyphenylthio)-2-Chlorophenyl]Ethyl]-1,3-Propanediol Hydrochloride and Hydrates Thereof, and Intermediates in the Production Thereof 有权
    制备2-氨基-2- [2- [4-(3-苄氧基苯硫基)-2-氯苯基]乙基] -1,3-丙二醇盐酸盐及其水合物的方法及其制备中间体

    公开(公告)号:US20080207941A1

    公开(公告)日:2008-08-28

    申请号:US11665058

    申请日:2005-10-07

    摘要: A process for the industrial production of 2-amino-2-[2-[4-(3-benzyloxyphenylthio)-2-chlorophenyl]ethyl]-1,3-propanediol hydrochloride (Compound I), an effective immunosuppressant.The process for producing 2-amino-2-[2-[4-(3-benzyloxyphenylthio)-2-chlorophenyl]ethyl]-1,3-propanediol hydrochloride or a hydrate thereof includes the steps of reacting 4-(3-benzyloxyphenylthio)-2-chlorobenzaldehyde with ethyl diethylphosphonoacetate in a solvent in the presence of a base to form ethyl 3-[4-(3-benzyloxyphenylthio)-2-chlorophenyl]acrylate; reducing the resulting ethyl 3-[4-(3-benzyloxyphenylthio)-2-chlorophenyl]acrylate, followed by mesylation, iodination and nitration, to form 1-benzyloxy-3-[3-chloro-4-(3-nitropropyl)phenylthio]benzene; forming 2-[2-[4-(3-benzyloxyphenylthio)-2-chlorophenyl]ethyl]-2-nitro-1,3-propanediol using a formaldehyde solution; and reducing the resulting 2-[2-[4-(3-benzyloxyphenylthio)-2-chlorophenyl]ethyl]-2-nitro-1,3-propanediol to form the desired product.

    摘要翻译: 工业生产2-氨基-2- [2- [4-(3-苄氧基苯硫基)-2-氯苯基]乙基] -1,3-丙二醇盐酸盐(化合物I)的方法,一种有效的免疫抑制剂。 2-氨基-2- [2- [4-(3-苄氧基苯硫基)-2-氯苯基]乙基] -1,3-丙二醇盐酸盐或其水合物的制备方法包括使4-(3-苄氧基苯硫基 )-2-氯苯甲醛与二乙基膦酰基乙酸乙酯在溶剂中在碱存在下反应,生成3- [4-(3-苄氧基苯硫基)-2-氯苯基]丙烯酸乙酯; 将所得的3- [4-(3-苄氧基苯硫基)-2-氯苯基]丙烯酸乙酯还原,然后甲磺酰化,碘化和硝化,得到1-苄氧基-3- [3-氯-4-(3-硝基丙基)苯硫基 ]苯; 使用甲醛溶液形成2- [2- [4-(3-苄氧基苯硫基)-2-氯苯基]乙基] -2-硝基-1,3-丙二醇; 并还原得到的2- [2- [4-(3-苄氧基苯硫基)-2-氯苯基]乙基] -2-硝基-1,3-丙二醇以形成所需产物。