Pyrazoloindazole derivatives and process for preparing the same and pharmaceutical compositions
申请人:Chugai Seiyaku
Kabushiki Kaisha
公开号:EP0023633A1
公开(公告)日:1981-02-11
Novel pyrazoloindazole derivatives of the formula I
wherein R1 is a hydrogen atom, halogen atom, a hydroxyl group, a lower alkyl group, a lower alkoxyl group or benzyloxyl group; R2 is a hydrogen atom, a halogen atom, a lower alkyl group or phenyl group; and X6is a halide ion,a hydroxide ion, a methanesulfonate ion, a p-toluenesulfonate ion, a sulfate ion, a nitrate ion, a carbonate ion, an acetate ion, a benzoate ion or a salicylate ion, a process for preparing the derivatives, and a pharmaceutical composition containing the same are disclosed. The derivatives have good bronchodilating action for human without exhibiting substantially bad effects on the functioning of heart, and therefore, they are useful as a drug.
式 I 的新型
吡唑并
吲唑衍
生物
其中 R1 是氢原子、卤素原子、羟基、低级烷基、低级烷氧基或苄氧基;R2 是氢原子、卤素原子、低级烷基或苯基;和 X6 是卤化物离子、氢氧根离子、
甲磺酸根离子、
对甲苯磺酸根离子、
硫酸根离子、
硝酸根离子、
碳酸根离子、
乙酸根离子、
苯甲酸根离子或
水杨酸根离子,本发明公开了这些衍
生物的制备方法和含有这些衍
生物的药物组合物。这些衍
生物对人体具有良好的支气管扩张作用,而不会对心脏功能产生实质性的不良影响,因此可用作药物。