| abstract |
ABSTRACT OF THE DISCLOSURE Novel pyrazoloindazole derivatives of the formula 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, provided that R1 and R2 are not hydrogen at the same time; and X? is a halide ion, a hydroxide ion, a methane-sulfonate 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 dis-closed. The derivatives have good bronchodilating action for humans without exhibiting substantially bad effects on the functioning of heart,and therefore, they are useful as a drug. |