Method for producing aminothiazole derivative and production intermediate
    3.
    发明公开
    Method for producing aminothiazole derivative and production intermediate 有权
    生产氨基噻唑衍生物和生产中间体的方法

    公开(公告)号:EP2269997A2

    公开(公告)日:2011-01-05

    申请号:EP10010896.8

    申请日:2005-08-23

    IPC分类号: C07D277/56

    摘要: A compound represented by formula (5a):

    (wherein ring A represents a benzene ring or a 6-membered aromatic heterocycle; R 1 represents a hydrogen atom, a C 1-6 alkyl group, a halogen atom, a nitro group, an amino group, a mono-C 1-6 alkylamino group, or a di-C 1-6 alkylamino group; and at least one of R 2 , R 3 , and R 4 represents a methoxy group, and the rest each represents a hydrogen atom, a C 1-6 alkyl group, a halogen atom, a nitro group, an amino group, a mono-C 1-6 alkylamino group, or a di-C 1-6 alkylamino group).

    摘要翻译: 由式(5a)表示的化合物:(其中环A表示苯环或6元芳族杂环; R 1表示氢原子,C 1-6烷基,卤素原子,硝基,氨基, 单C1-6烷基氨基或二C1-6烷基氨基;并且R2,R3和R4中的至少一个表示甲氧基,其余各自表示氢原子,C1-6烷基 ,卤素原子,硝基,氨基,单C 1-6烷基氨基或二C 1-6烷基氨基)。

    Method for producing aminothiazole derivative and production intermediate
    4.
    发明公开
    Method for producing aminothiazole derivative and production intermediate 有权
    生产氨基噻唑衍生物和生产中间体的方法

    公开(公告)号:EP2269975A2

    公开(公告)日:2011-01-05

    申请号:EP10010897.6

    申请日:2005-08-23

    摘要: A production method of a compound represented by formula (2):

    (wherein ring A represents a benzene ring or a 6-membered aromatic heterocycle; R 1 represents a hydrogen atom, a C 1-6 alkyl group, a halogen atom, a nitro group, an amino group, a mono-C 1-6 alkylamino group, or a di-C 1-6 alkylamino group; and at least one of R 2 , R 3 , and R 4 represents a methoxy group, and the rest each represents a hydrogen atom, a C 1-6 alkyl group, a halogen atom, a nitro group, an amino group, a mono-C 1-6 alkylamino group, or a di-C 1-6 alkylamino group),
    comprising reacting a compound represented by formula (1):

    (wherein ring A and R 1 , R 2 , R 3 , and R 4 are the same as defined above) with a Lewis acid selected from BF 3 , TiCl 4 , and AlCl 3 in esteric, ketonic or amidic solvents selected from ethyl acetate, methyl acetate, butyl acetate, isobutyl acetate, acetone, 2-butane, cyclohexane, cyclopentane, dimethylformamide, and dimethylacetamide, with the proviso that when the Lewis acid is BF 3 , an alkali metal bromide or an alkali metal iodide coexists.

    摘要翻译: 由式(2)表示的化合物的制备方法:(其中环A表示苯环或6元芳族杂环; R 1表示氢原子,C 1-6烷基,卤素原子,硝基, 氨基,单C1-6烷基氨基或二C1-6烷基氨基;并且R2,R3和R4中的至少一个表示甲氧基,其余各自表示氢原子,C1 卤素原子,硝基,氨基,单-C1-6烷基氨基或二-C1-6烷基氨基)的方法,其包括使由式(1)表示的化合物:(其中, 在选自乙酸乙酯,乙酸甲酯,乙酸丁酯,乙酸异丁酯的酯,酮或酰胺类溶剂中,与选自BF 3,TiCl 4和AlCl 3的路易斯酸反应,得到式I化合物,其中R 1和R 2,R 3和R 4与上述定义相同) ,丙酮,2-丁烷,环己烷,环戊烷,二甲基甲酰胺和二甲基乙酰胺,条件是当路易斯酸为BF 3时,碱金属溴化物 或碱金属碘化物共存。