Process for preparing 1,2,3,9-tetrahydro-9-methyl-3-[(2-methyl-1h-imidazole-1-yl)methyl]- 4h-carbbazol-4-one or its salt
申请人:Lee Tai Au
公开号:US20070129414A1
公开(公告)日:2007-06-07
1,2,3,9-tetrahydro-9-methyl-3-[(2-methyl-1H-imidazol-1-yl)methyl]-4H-carbazol-4-one or its salt is prepared in high yield by reacting a compound of formula 2 with a compound of formula 3 and a compound of formula 4 in the presence of an acid, an alkylsilylhalide compound or an acylhalide compound, in an solvent, and thus, such an inventive process can be favorably applied to a large-scale mass production thereof.
1,2,3,9-四氢-9-甲基-3-[(2-甲基-1H-咪唑-1-基)甲基]-4H-咔唑-4-酮或其盐可以在酸、烷基硅卤化物化合物或酰卤化合物存在下,在溶剂中通过将式子2的化合物与式子3和式子4的化合物反应来高产率制备,因此,这种创新的过程可以有利地应用于大规模生产。