Preparation of 2-alkyl-3-(4,5-dihydroisoxazol-3-yl) halobenzenes
    1.
    发明授权
    Preparation of 2-alkyl-3-(4,5-dihydroisoxazol-3-yl) halobenzenes 有权
    2-烷基-3-(4,5-二氢异恶唑-3-基)卤代苯的制备

    公开(公告)号:US06603017B2

    公开(公告)日:2003-08-05

    申请号:US10141236

    申请日:2002-05-09

    IPC分类号: C07D26118

    CPC分类号: C07D261/04

    摘要: A novel process for preparing the compounds of the formula I where: n is 0, 1 or 2; R1, R2 are C1-C6-alkyl; R3, R4, R5 are hydrogen or C1-C6-alkyl, or R4 and R5 together form a bond; R6 is Cl, Br, which comprises a synthesis sequence starting from 1,2-dialkylbenzenes of the formula II with subsequent halogenation to give 3,6-dihalo-1,2-dialkylbenzenes, haloalkylation to give benzyl bromides, oxidation to give benzaldehydes, oximation, reaction with alkenes to give isoxazoles, conversion into thioethers and, if appropriate, oxidation to give sulfenyl or sulfonyl derivatives of the formula I.

    摘要翻译: 一种制备式I化合物的新方法,其中n为0,1或2; R 1,R 2为C 1 -C 6 - 烷基; R 3,R 4,R 5为氢或C 1 -C 6烷基,或者R 4和R 5一起形成 R 6是Cl,Br,其包含从式II的1,2-二烷基苯开始的合成序列,随后卤化以得到3,6-二卤代-1,2-二烷基苯,卤代烷基化得到苄基溴,氧化得到 苯甲醛,肟化,与烯烃的反应得到异恶唑,转化成硫醚,如果合适,氧化得到式I的磺酰基或磺酰基衍生物。

    Method for synthesizing leflunomide
    2.
    发明授权
    Method for synthesizing leflunomide 失效
    合成来氟米特的方法

    公开(公告)号:US06723855B2

    公开(公告)日:2004-04-20

    申请号:US09779928

    申请日:2001-02-08

    IPC分类号: C07D26118

    CPC分类号: C07D261/18 A61K31/42

    摘要: A process for synthesizing leflunomide from 5-methylisoxazole-4-carboxylic acid and 4-trifluoromethylaniline is provided in which the carboxylic acid group of 5-methylisoxazole-4-carboxylic acid is chlorinated, forming 5-methylisoxazole-4-carboxylic acid chloride. The acid chloride is then reacted without intermediate distillation with 4-trifluoromethylaniline in the presence of an alkali metal or alkaline-earth metal bicarbonate acid scavenger.

    摘要翻译: 提供了从5-甲基异恶唑-4-羧酸和4-三氟甲基苯胺合成来氟米特的方法,其中将5-甲基异恶唑-4-羧酸的羧酸基团氯化,形成5-甲基异恶唑-4-甲酰氯。 然后在碱金属或碱土金属碳酸氢盐清除剂的存在下,将酰氯与4-三氟甲基苯胺进行中间蒸馏反应。

    Method of producing 2-alkyl-3-(4,5-dihydroisoxazole-3-yl)-halobenzenes
    3.
    发明授权
    Method of producing 2-alkyl-3-(4,5-dihydroisoxazole-3-yl)-halobenzenes 有权
    2-烷基-3-(4,5-二氢异恶唑-3-基) - 卤代苯的制备方法

    公开(公告)号:US06548677B1

    公开(公告)日:2003-04-15

    申请号:US09856037

    申请日:2001-05-17

    IPC分类号: C07D26118

    CPC分类号: C07D261/04

    摘要: A novel process for preparing the compounds of the formula I where: n is 0, 1 or 2; R1, R2 are C1-C6-alkyl; R3, R4, R5 are hydrogen or C1-C6-alkyl, or R4 and R5 together form a bond; R6 is Cl, Br, which comprises a synthesis sequence starting from 1,2-dialkylbenzenes of the formula II with subsequent halogenation to give 3,6-dihalo-1,2-dialkylbenzenes, haloalkylation to give benzyl bromides, oxidation to give benzaldehydes, oximation, reaction with alkenes to give isoxazoles, conversion into thioethers and, if appropriate, oxidation to give sulfenyl or sulfonyl derivatives of the formula I.

    摘要翻译: 一种制备式I化合物的新方法,其中n为0,1或2; R 1,R 2为C 1 -C 6 - 烷基; R 3,R 4,R 5为氢或C 1 -C 6烷基,或者R 4和R 5一起形成 R 6是Cl,Br,其包含从式II的1,2-二烷基苯开始的合成序列,随后卤化以得到3,6-二卤代-1,2-二烷基苯,卤代烷基化得到苄基溴,氧化得到 苯甲醛,肟化,与烯烃的反应得到异恶唑,转化成硫醚,如果合适,氧化得到式I的磺酰基或磺酰基衍生物。

    Preparation of 2-alkyl-3-(4,5-dihydroisoxazol-3-yl) halobenzenes
    4.
    发明授权
    Preparation of 2-alkyl-3-(4,5-dihydroisoxazol-3-yl) halobenzenes 有权
    2-烷基-3-(4,5-二氢异恶唑-3-基)卤代苯的制备

    公开(公告)号:US06716989B2

    公开(公告)日:2004-04-06

    申请号:US10462903

    申请日:2003-06-18

    IPC分类号: C07D26118

    CPC分类号: C07D261/04

    摘要: A novel process for preparing the compounds of the formula I where: n is 0, 1 or 2; R1, R2 are C1-C6-alkyl; R3, R4, R5 are hydrogen or C1-C6-alkyl, or R4 and R5 together form a bond; R6 is Cl, Br, which comprises a synthesis sequence starting from 1,2-dialkylbenzenes of the formula II with subsequent halogenation to give 3,6-dihalo-1,2-dialkylbenzenes, haloalkylation to give benzyl bromides, oxidation to give benzaldehydes, oximation, reaction with alkenes to give isoxazoles, conversion into thioethers and, if appropriate, oxidation to give sulfenyl or sulfonyl derivatives of the formula I.

    摘要翻译: 一种制备式I化合物的新方法,其中n为0,1或2; R 1,R 2为C 1 -C 6 - 烷基; R 3,R 4,R 5, 或者R 4和R 5一起形成键; R 6是Cl,Br,其包含从式II的1,2-二烷基苯开始的合成序列,随后 卤化得到3,6-二卤代-1,2-二烷基苯,卤代烷基化得到苄基溴,氧化得到苯甲醛,肟化,与烯烃反应得到异恶唑,转化成硫醚,如果合适,氧化得到亚硫酰基或磺酰基衍生物 的式I。

    Processes for making- and a new crystalline form of- leflunomide
    5.
    发明授权
    Processes for making- and a new crystalline form of- leflunomide 失效
    制备和新型结晶形式的来氟米特的方法

    公开(公告)号:US06610718B2

    公开(公告)日:2003-08-26

    申请号:US09736727

    申请日:2000-12-14

    IPC分类号: C07D26118

    CPC分类号: C07D261/18 A61K31/42

    摘要: New leflunomide Form III is disclosed, along with processes for preparing it. The present invention also provides an economic process for preparing leflunomide Form II and a process for preparing leflunomide Form I from leflunomide Form III. Pharmaceutical compositions and dosage forms containing the new form and methods of using them for the treatment of rheumatoid arthritis are also disclosed.

    摘要翻译: 公开了新的来氟米特III型,以及其制备方法。 本发明还提供了用于制备来氟米特II型的经济方法和从来氟米特III型制备来氟米特I型的方法。 还公开了含有将其用于治疗类风湿性关节炎的新形式和方法的药物组合物和剂型。

    Crystal form of N-(4-trifluoromethylphenyl)-5-methylisoxazole-4-carboxamide
    6.
    发明授权
    Crystal form of N-(4-trifluoromethylphenyl)-5-methylisoxazole-4-carboxamide 有权
    晶型N-(4-三氟甲基苯基)-5-甲基异恶唑-4-甲酰胺

    公开(公告)号:US06552202B2

    公开(公告)日:2003-04-22

    申请号:US09764258

    申请日:2001-01-19

    IPC分类号: C07D26118

    CPC分类号: C07D261/18

    摘要: The invention relates to a crystal modification of the compound of the formula I and the processes for the preparation of and use that crystal modifications 1. The invention is used for treating acute immunological episodes, such as sepsis, allergies, graft-versus-host and host-versus-graft-reactions, autoimmune diseases, in particular rheumatoid arthritis, systemic lupus erythematosus, multiple sclerosis, psoriasis, atopic dermatitis, asthma, urticaria, rhinitis, uveitis, type 11 diabetes, liver fibrosis, cystic fibrosis, colitis, cancers, such as lung cancer, leukemia, ovarian cancer, sarcomas, Kaposi's sarcoma, meningioma, intestinal cancer, lymphatic cancer, brain tumors, breast cancer, pancreatic cancer, prostate cancer, or skin cancer.

    摘要翻译: 本发明涉及式I化合物的晶体改性以及制备和使用晶体修饰的方法1.本发明用于治疗急性免疫性发作,例如败血症,过敏反应,移植物抗宿主和宿主 - 反接种反应,自身免疫性疾病,特别是类风湿性关节炎,系统性红斑狼疮,多发性硬化,牛皮癣,特应性皮炎,哮喘,荨麻疹,鼻炎,葡萄膜炎,11型糖尿病,肝纤维化,囊性纤维化,结肠炎,癌症等 作为肺癌,白血病,卵巢癌,肉瘤,卡波西氏肉瘤,脑膜瘤,肠癌,淋巴癌,脑肿瘤,乳腺癌,胰腺癌,前列腺癌或皮肤癌。