Process for preparing malathion for pharmaceutical use

    公开(公告)号:US08536155B2

    公开(公告)日:2013-09-17

    申请号:US13239750

    申请日:2011-09-22

    IPC分类号: A61K31/66

    摘要: The present invention provides a process for preparing a highly pure form of malathion having a reduced level of toxic impurities. In addition, the malathion prepared by the process of this invention is storage stable. The level of toxic impurities in the malathion, e.g., isomalathion, O,O,S-trimethyl phosphorodithioate (MeOOSPS), O,O,S-trimethyl phosphorothioate (MeOOSPO), O,S,S-trimethyl phosphorodithioate (MeOSSPO), malaoxon, isomalathion, diethyl fumarate, methyl malathion, dimethyl malathion, O,O-methyl,ethyl-S-(1,2-dicarboethoxy)ethyl-phosphorodithioate are lower than that of any other commercial preparation of malathion that may be used for pharmaceutical purposes.

    PROCESS FOR PREPARING MALATHION FOR PHARMACEUTICAL USE
    12.
    发明申请
    PROCESS FOR PREPARING MALATHION FOR PHARMACEUTICAL USE 有权
    制备麻醉药物用途的方法

    公开(公告)号:US20120010175A1

    公开(公告)日:2012-01-12

    申请号:US13239750

    申请日:2011-09-22

    IPC分类号: A61K31/661 A61P33/14

    摘要: The present invention provides a process for preparing a highly pure form of malathion having a reduced level of toxic impurities. In addition, the malathion prepared by the process of this invention is storage stable. The level of toxic impurities in the malathion, e.g., isomalathion, O,O,S-trimethyl phosphorodithioate (MeOOSPS), O,O,S-trimethyl phosphorothioate (MeOOSPO), O,S,S-trimethyl phosphorodithioate (MeOSSPO), malaoxon, isomalathion, diethyl fumarate, methyl malathion, dimethyl malathion, O,O-methyl,ethyl-S-(1,2-dicarboethoxy)ethyl-phosphorodithioate are lower than that of any other commercial preparation of malathion that may be used for pharmaceutical purposes.

    摘要翻译: 本发明提供了制备具有降低的有毒杂质水平的高纯度形式的马拉硫磷的方法。 此外,通过本发明的方法制备的马拉硫磷是储存稳定的。 马拉硫磷中的有毒杂质,例如异马硫磷,O,O,S-三甲基二硫代磷酸酯(MeOOSPS),O,O,S-三甲基硫代磷酸酯(MeOOSPO),O,S,S-三甲基二硫代磷酸酯(MeOSSPO),malaoxon 异马硫磷,富马酸二乙酯,甲基马拉硫磷,二甲基马拉硫磷,O,O-甲基,乙基-S-(1,2-二甲氧基乙氧基)乙基 - 二硫代磷酸酯的含量低于可用于制药目的的任何其他马拉硫磷市售制剂 。

    Process for preparing 1,2,3,9-tetrahydro-9-methyl-3-methylene-4H-carbazol-4-one and ondansetron therefrom
    13.
    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 malathion for pharmaceutical use
    15.
    发明授权
    Process for preparing malathion for pharmaceutical use 有权
    制备马拉硫糖用于制药的方法

    公开(公告)号:US07560445B2

    公开(公告)日:2009-07-14

    申请号:US11427863

    申请日:2006-06-30

    IPC分类号: A61K31/66

    摘要: The present invention provides a process for preparing a highly pure form of malathion having a reduced level of toxic impurities. In addition, the malathion prepared by the process of this invention is storage stable. The level of toxic impurities in the malathion, e.g., isomalathion, O,O,S-trimethyl phosphorodithioate (MeOOSPS), O,O,S-trimethyl phosphorothioate (MeOOSPO), O,S,S-trimethyl phosphorodithioate (MeOSSPO), malaoxon, isomalathion, diethyl fumarate, methyl malathion, dimethyl malathion, O,O-methyl,ethyl-S-(1,2-dicarboethoxy)ethyl-phosphorodithioate are lower than that of any other commercial preparation of malathion that may be used for pharmaceutical purposes.

    摘要翻译: 本发明提供了制备具有降低的有毒杂质水平的高纯度形式的马拉硫磷的方法。 此外,通过本发明的方法制备的马拉硫磷是储存稳定的。 马拉硫磷中的有毒杂质,例如异马硫磷,O,O,S-三甲基二硫代磷酸酯(MeOOSPS),O,O,S-三甲基硫代磷酸酯(MeOOSPO),O,S,S-三甲基二硫代磷酸酯(MeOSSPO),malaoxon 异马硫磷,富马酸二乙酯,甲基马拉硫磷,二甲基马拉硫磷,O,O-甲基,乙基-S-(1,2-二甲氧基乙氧基)乙基 - 二硫代磷酸酯的含量低于可用于制药目的的任何其他马拉硫磷市售制剂 。

    PROCESS FOR PREPARING MALATHION FOR PHARMACEUTICAL USE
    16.
    发明申请
    PROCESS FOR PREPARING MALATHION FOR PHARMACEUTICAL USE 有权
    制备麻醉药物用途的方法

    公开(公告)号:US20090124823A1

    公开(公告)日:2009-05-14

    申请号:US12353691

    申请日:2009-01-14

    IPC分类号: C07F9/17

    摘要: The present invention provides a process for preparing a highly pure form of malathion having a reduced level of toxic impurities. In addition, the malathion prepared by the process of this invention is storage stable. The level of toxic impurities in the malathion, e.g., isomalathion, O,O,S-trimethyl phosphorodithioate (MeOOSPS), O,O,S-trimethyl phosphorothioate (MeOOSPO), O,S,S-trimethyl phosphorodithioate (MeOSSPO), malaoxon, isomalathion, diethyl fumarate, methyl malathion, dimethyl malathion, O,O-methyl,ethyl-S-(1,2-dicarboethoxy)ethyl-phosphorodithioate are lower than that of any other commercial preparation of malathion that may be used for pharmaceutical purposes.

    摘要翻译: 本发明提供了制备具有降低的有毒杂质水平的高纯度形式的马拉硫磷的方法。 此外,通过本发明的方法制备的马拉硫磷是储存稳定的。 马拉硫磷中的有毒杂质,例如异马硫磷,O,O,S-三甲基二硫代磷酸酯(MeOOSPS),O,O,S-三甲基硫代磷酸酯(MeOOSPO),O,S,S-三甲基二硫代磷酸酯(MeOSSPO),malaoxon 异马硫磷,富马酸二乙酯,甲基马拉硫磷,二甲基马拉硫磷,O,O-甲基,乙基-S-(1,2-二甲氧基乙氧基)乙基 - 二硫代磷酸酯的含量低于可用于制药目的的任何其他马拉硫磷市售制剂 。

    Process for preparing ondansetron hydrochloride dihydrate having a defined particle size
    17.
    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 Malathion for Pharmaceutical Use
    18.
    发明申请
    Process for Preparing Malathion for Pharmaceutical Use 有权
    马拉硫磷制备方法

    公开(公告)号:US20070010496A1

    公开(公告)日:2007-01-11

    申请号:US11427863

    申请日:2006-06-30

    IPC分类号: A01N57/00 C07F9/02

    摘要: The present invention provides a process for preparing a highly pure form of malathion having a reduced level of toxic impurities. In addition, the malathion prepared by the process of this invention is storage stable. The level of toxic impurities in the malathion, e.g., isomalathion, O,O,S-trimethyl phosphorodithioate (MeOOSPS), O,O,S-trimethyl phosphorothioate (MeOOSPO), O,S,S-trimethyl phosphorodithioate (MeOSSPO), malaoxon, isomalathion, diethyl fumarate, methyl malathion, dimethyl malathion, O,O-methyl,ethyl-S-(1,2-dicarboethoxy)ethyl-phosphorodithioate are lower than that of any other commercial preparation of malathion that may be used for pharmaceutical purposes.

    摘要翻译: 本发明提供了制备具有降低的有毒杂质水平的高纯度形式的马拉硫磷的方法。 此外,通过本发明的方法制备的马拉硫磷是储存稳定的。 马拉硫磷中的有毒杂质,例如异马硫磷,O,O,S-三甲基二硫代磷酸酯(MeOOSPS),O,O,S-三甲基硫代磷酸酯(MeOOSPO),O,S,S-三甲基二硫代磷酸酯(MeOSSPO),malaoxon 异马硫磷,富马酸二乙酯,甲基马拉硫磷,二甲基马拉硫磷,O,O-甲基,乙基-S-(1,2-二甲氧基乙氧基)乙基 - 二硫代磷酸酯的含量低于可用于制药目的的任何其他马拉硫磷市售制剂 。

    Method of preparing 4-amino-1H-imidazo (4,5-c) quinolines and acid addition salts thereof
    19.
    发明授权
    Method of preparing 4-amino-1H-imidazo (4,5-c) quinolines and acid addition salts thereof 有权
    4-氨基-1H-咪唑并(4,5-c)喹啉及其酸加成盐的制备方法

    公开(公告)号:US08080662B2

    公开(公告)日:2011-12-20

    申请号:US12749138

    申请日:2010-03-29

    IPC分类号: C07D491/06 A61K31/44

    CPC分类号: C07D401/04

    摘要: The present invention provides a method of preparing a 4-(arylmethyl)amino-1H-imidazo(4,5-c)quinoline of formula (4) by reacting an arylmethylamine of formula (3) with a 4-chloro-1H-imidazo(4,5-c)quinoline of formula (2). The present invention further provides a method of preparing an acid addition salt of formula (5) comprising the step of hydrolyzing a 4-(arylmethyl)amino-1H-imidazo(4,5-c)quinoline of formula (4) with a strong acid, HX. The present invention further provides a method of preparing a 4-amino-1H-imidazo(4,5-c)quinoline of formula (1) comprising the step of treating an acid addition salt of formula (5) with a base.

    摘要翻译: 本发明提供了通过使式(3)的芳基甲基胺与4-氯-1H-咪唑并[4,5-d]喹啉的4-(芳基甲基)氨基-1H-咪唑并(4,5-c) (4,5-c)喹啉。 本发明还提供一种制备式(5)的酸加成盐的方法,其包括用强力的水解水解式(4)的4-(芳基甲基)氨基-1H-咪唑(4,5-c)喹啉的步骤 酸,HX。 本发明还提供制备式(1)的4​​-氨基-1H-咪唑并(4,5-c)喹啉的方法,包括用碱处理式(5)的酸加成盐的步骤。