2 - 3 'chloro-4 - 2, 2-dimethylidin-1-il carbon - 5-fluorbiphenil-2-il ox, propane and its salt 2-methylpropan-2-amine; crystal form of salt and free acid; intermediate compound; and use in the treatment of asthma, nephritis and chronic obstructive pulmonary disease.

摘要

2. Pyrethroid derivative mixture, preparation process, crystal form, intermediate compound, drug composition and combination, drug package, and use in the treatment of respiratory disorders, such as asthma, nephritis and EPOC.