4-<1.1-Dimethyl-hexyl>-toluol 、 N-溴代丁二酰亚胺(NBS) 、 偶氮二异庚腈 以to obtain 215 mg of the title compound as pale yellow oil substantially quantitatively的产率得到4-(1,1-dimethylhexyl)benzyl bromide
The present invention relates to a compound represented by the formula (I):
or a pharmaceutically acceptable salt thereof, a medical composition containing the same, and a medical composition for the treatment or prophylaxis of respiratory diseases or glaucoma.