Process for preparing ondansetron hydrochloride dihydrate having a defined particle size
    1.
    发明申请
    Process for preparing ondansetron hydrochloride dihydrate having a defined particle size 有权
    制备具有规定粒径的盐酸昂丹司琼二水合物的方法

    公开(公告)号:US20050261351A1

    公开(公告)日:2005-11-24

    申请号:US11122401

    申请日:2005-05-05

    CPC分类号: A61K31/4178 C07D403/06

    摘要: The invention provides a process for preparing ondansetron hydrochloride dihydrate particles in which at least about 70% of the particles have a particle size of less than 250 μm, comprising the steps of: (a) preparing a solution comprising ondansetron hydrochloride and water; and (b) adding the solution into a precipitation medium which comprises a water-miscible nonsolvent for ondansetron hydrochloride, while maintaining the resulting mixture at a temperature of about 40° C. or less.

    摘要翻译: 本发明提供了一种制备盐酸昂丹司琼二水合物颗粒的方法,其中至少约70%的颗粒具有小于250μm的粒度,包括以下步骤:(a)制备包含盐酸昂丹司琼和水的溶液; 和(b)将溶液加入到沉淀介质中,所述沉淀介质包含盐酸昂丹司琼的水混溶性非溶剂,同时将所得混合物保持在约40℃或更低的温度。

    PROCESS FOR THE PREPARATION OF A STABLE POLYMORPHIC FORM OF ATOVAGUONE
    2.
    发明申请
    PROCESS FOR THE PREPARATION OF A STABLE POLYMORPHIC FORM OF ATOVAGUONE 审中-公开
    制备ATOVAGUONE稳定多晶型的方法

    公开(公告)号:US20140073816A1

    公开(公告)日:2014-03-13

    申请号:US14005123

    申请日:2012-03-14

    IPC分类号: C07C46/00

    摘要: The present invention provides a process for the preparation of a stable polymorph III of Atovaquone exhibiting characteristic peaks (expressed in degrees 2θ±0.2°θ) at about 6.9, 9.6, 14.1, 14.7, 17.0, 18.5, 19.1, 19.9, 20.3, 22.0, 22.6, 23.2, 24.2, 26.8, and 28.5, which comprises: (a) providing a sample of Atovaquone particles; (b) heating the sample of Atovaquone particles at a minimal temperature of between 140° C. to 160° C. depending on the particle size of the sample; and (c) cooling the sample to obtain the stable polymorphic form of Atovaquone.

    摘要翻译: 本发明提供一种制备在约6.9,9.6,14.1,14.7,17.0,18.5,19.1,19.9,20.3,22.0的表现出特征峰(以度2θ±0.2°θ表示)的阿托瓦醌的稳定多晶型III的方法 ,22.6,23.2,24.2,26.8和28.5,其包括:(a)提供Atovaquone颗粒的样品; (b)根据样品的粒度在140℃至160℃的最低温度下加热Atovaquone颗粒样品; 和(c)冷却样品以获得稳定的多形态阿托伐醌。

    Process for Preparaing 1-Methoxymethyl 5,5-Diphenylbarbituric Acid
    3.
    发明申请
    Process for Preparaing 1-Methoxymethyl 5,5-Diphenylbarbituric Acid 失效
    制备1-甲氧基甲基5,5-二苯基巴比妥酸的方法

    公开(公告)号:US20060258864A1

    公开(公告)日:2006-11-16

    申请号:US11380066

    申请日:2006-04-25

    IPC分类号: C07D239/02

    CPC分类号: C07D239/62

    摘要: The present invention provides a novel process for preparing 1-methoxymethyl-5,5-diphenylbarbituric acid. In particular, the present invention provides a process for preparing 1-methoxymethyl-5,5-diphenylbarbituric acid by reacting 1,3-bis(methoxymethyl)-5,5-diphenylbarbituric acid with a Lewis acid to selectively remove one methoxymethyl group from 1,3-bis(methoxymethyl)-5,5-diphenylbarbituric acid.

    摘要翻译: 本发明提供一种制备1-甲氧基甲基-5,5-二苯基巴比妥酸的新方法。 特别地,本发明提供了通过使1,3-双(甲氧基甲基)-5,5-二苯基巴比妥酸与路易斯酸反应来制备1-甲氧基甲基-5,5-二苯基巴比妥酸的方法,以选择性地从1 ,3-双(甲氧基甲基)-5,5-二苯基巴比妥酸。

    Process for preparing 1,2,3,9-tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one and ondansetron therefrom
    5.
    发明授权
    Process for preparing 1,2,3,9-tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one and ondansetron therefrom 失效
    由1,2,3,9-四氢-9-甲基-3-亚甲基-4H-咔唑-4-酮和昂丹司琼制备的方法

    公开(公告)号:US07696356B2

    公开(公告)日:2010-04-13

    申请号:US11204539

    申请日:2005-08-16

    IPC分类号: C07D209/88 C07D403/06

    CPC分类号: C07D403/06 C07D209/88

    摘要: The present invention provides a rapid, high-yielding process for preparing 1,2,3,9-tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one from 1,2,3,9-tetrahydro-9-methyl-4H-carbazol-4-one without using a secondary amine as a catalyst, and without using glacial acetic acid as a solvent. The present invention further provides a rapid, high-yielding process for preparing ondansetron from 1,2,3,9-tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one without using alumina as a catalyst.

    摘要翻译: 本发明提供了快速,高产出的方法,用于由1,2,3,9-四氢-9(1H) - 酮制备1,2,3,9-四氢-9-甲基-3-亚甲基-4H-咔唑-4-酮 - 甲基-4H-咔唑-4-酮,不使用仲胺作为催化剂,不使用冰醋酸作为溶剂。 本发明还提供了一种用于从1,2,3,9-四氢-9-甲基-3-亚甲基-4H-咔唑-4-酮制备昂丹司琼的快速,高产率的方法,而不使用氧化铝作为催化剂。

    Process for preparing ondansetron hydrochloride dihydrate having a defined particle size
    6.
    发明授权
    Process for preparing ondansetron hydrochloride dihydrate having a defined particle size 有权
    制备具有规定粒径的盐酸昂丹司琼二水合物的方法

    公开(公告)号:US07288660B2

    公开(公告)日:2007-10-30

    申请号:US11122401

    申请日:2005-05-05

    IPC分类号: C07D233/20

    CPC分类号: A61K31/4178 C07D403/06

    摘要: The invention provides a process for preparing ondansetron hydrochloride dihydrate particles in which at least about 70% of the particles have a particle size of less than 250 μm, comprising the steps of: (a) preparing a solution comprising ondansetron hydrochloride and water; and (b) adding the solution into a precipitation medium which comprises a water-miscible nonsolvent for ondansetron hydrochloride, while maintaining the resulting mixture at a temperature of about 40° C. or less.

    摘要翻译: 本发明提供了一种制备盐酸昂丹司琼二水合物颗粒的方法,其中至少约70%的颗粒具有小于250μm的粒度,包括以下步骤:(a)制备包含盐酸昂丹司琼和水的溶液; 和(b)将溶液加入到沉淀介质中,所述沉淀介质包含盐酸昂丹司琼的水混溶性非溶剂,同时将所得混合物保持在约40℃或更低的温度。

    Process for preparing 1-methoxymethyl 5,5-diphenybarbituric acid
    8.
    发明申请
    Process for preparing 1-methoxymethyl 5,5-diphenybarbituric acid 审中-公开
    1-甲氧基甲基-5,5-二苯基巴比妥酸的制备方法

    公开(公告)号:US20070167624A1

    公开(公告)日:2007-07-19

    申请号:US11727557

    申请日:2007-03-27

    IPC分类号: C07D239/62

    CPC分类号: C07D239/62

    摘要: The present invention provides a novel process for preparing 1-methoxymethyl-5,5-diphenylbarbituric acid. In particular, the present invention provides a process for preparing 1-methoxymethyl-5,5-diphenylbarbituric acid by reacting 1,3-bis(methoxymethyl)-5,5-diphenylbarbituric acid with a Lewis acid to selectively remove one methoxymethyl group from 1,3-bis(methoxymethyl)-5,5-diphenylbarbituric acid.

    摘要翻译: 本发明提供一种制备1-甲氧基甲基-5,5-二苯基巴比妥酸的新方法。 特别地,本发明提供了通过使1,3-双(甲氧基甲基)-5,5-二苯基巴比妥酸与路易斯酸反应来制备1-甲氧基甲基-5,5-二苯基巴比妥酸的方法,以选择性地从1 ,3-双(甲氧基甲基)-5,5-二苯基巴比妥酸。

    Process for preparing 1-methoxymethyl-5,5-diphenylbarbituric acid
    9.
    发明授权
    Process for preparing 1-methoxymethyl-5,5-diphenylbarbituric acid 失效
    1-甲氧基甲基-5,5-二苯基巴比妥酸的制备方法

    公开(公告)号:US07227021B2

    公开(公告)日:2007-06-05

    申请号:US11380066

    申请日:2006-04-25

    IPC分类号: C07D239/62 C07D239/66

    CPC分类号: C07D239/62

    摘要: The present invention provides a novel process for preparing 1-methoxymethyl-5,5-diphenylbarbituric acid. In particular, the present invention provides a process for preparing 1-methoxymethyl-5,5-diphenylbarbituric acid by reacting 1,3-bis(methoxymethyl)-5,5-diphenylbarbituric acid with a Lewis acid to selectively remove one methoxymethyl group from 1,3-bis(methoxymethyl)-5,5-diphenylbarbituric acid.

    摘要翻译: 本发明提供一种制备1-甲氧基甲基-5,5-二苯基巴比妥酸的新方法。 特别地,本发明提供了通过使1,3-双(甲氧基甲基)-5,5-二苯基巴比妥酸与路易斯酸反应来制备1-甲氧基甲基-5,5-二苯基巴比妥酸的方法,以选择性地从1 ,3-双(甲氧基甲基)-5,5-二苯基巴比妥酸。

    Process for preparing 1,2,3,9-tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one and ondansetron therefrom
    10.
    发明申请
    Process for preparing 1,2,3,9-tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one and ondansetron therefrom 失效
    由1,2,3,9-四氢-9-甲基-3-亚甲基-4H-咔唑-4-酮和昂丹司琼制备的方法

    公开(公告)号:US20060041004A1

    公开(公告)日:2006-02-23

    申请号:US11204539

    申请日:2005-08-16

    IPC分类号: A61K31/403 C07D209/82

    CPC分类号: C07D403/06 C07D209/88

    摘要: The present invention provides a rapid, high-yielding process for preparing 1,2,3,9-tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one from 1,2,3,9-tetrahydro-9-methyl-4H-carbazol-4-one without using a secondary amine as a catalyst, and without using glacial acetic acid as a solvent. The present invention further provides a rapid, high-yielding process for preparing ondansetron from 1,2,3,9-tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one without using alumina as a catalyst.

    摘要翻译: 本发明提供了快速,高产出的方法,用于由1,2,3,9-四氢-9(1H) - 酮制备1,2,3,9-四氢-9-甲基-3-亚甲基-4H-咔唑-4-酮 - 甲基-4H-咔唑-4-酮,不使用仲胺作为催化剂,不使用冰醋酸作为溶剂。 本发明还提供了一种用于从1,2,3,9-四氢-9-甲基-3-亚甲基-4H-咔唑-4-酮制备昂丹司琼的快速,高产率的方法,而不使用氧化铝作为催化剂。