Process for producing piperazinesulfonamide derivatives and salts thereof
    2.
    发明授权
    Process for producing piperazinesulfonamide derivatives and salts thereof 失效
    哌嗪磺酰胺衍生物及其盐的制备方法

    公开(公告)号:US06172228B2

    公开(公告)日:2001-01-09

    申请号:US09453223

    申请日:1999-12-03

    IPC分类号: C07D40106

    CPC分类号: C07D295/088 C07D213/38

    摘要: A process for advantageously preparing a piperazinesulfonamide derivative represented by the general formula (III): wherein R1 is hydrogen atom, a straight or branched chain alkyl group having 1 to 6 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a halogen atom, hydroxyl group, trifluoromethyl group, nitro group or amino group; R2 is a phenyl group which may have as substituents on its phenyl ring 1 to 3 groups selected from the group consisting of an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a halogen atom, hydroxyl group, trifluoromethyl group, nitro group and amino group, 2-pyridyl group, 3-pyridyl group or 4-pyridyl group; each of R3 and R4 is independently hydrogen atom, a straight or branched chain alkyl group having 1 to 6 carbon atoms, a hydroxyalkyl group having 1 to 4 carbon atoms, a cycloalkyl group having 3 to 8 carbon atoms, or a phenyl group which may be substituted; and Y is an alkylene group having 1 to 12 carbon atoms, and a salt thereof.

    摘要翻译: 一种有利地制备由通式(III)表示的哌嗪磺酰胺衍生物的方法:其中R1是氢原子,具有1至6个碳原子的直链或支链烷基,具有1至4个碳原子的烷氧基,卤素原子 ,羟基,三氟甲基,硝基或氨基; R2是可以在其苯环上具有取代基的苯基,其选自具有1至4个碳原子的烷基,具有1至4个碳原子的烷氧基,卤素原子,羟基 三氟甲基,硝基和氨基,2-吡啶基,3-吡啶基或4-吡啶基; R 3和R 4各自独立地为氢原子,具有1至6个碳原子的直链或支链烷基,具有1至4个碳原子的羟基烷基,具有3至8个碳原子的环烷基或苯基, 被替代 Y为碳原子数1〜12的亚烷基及其盐。