Compounds of formula I
1
are useful in treating diseases prevented by or ameliorated with &agr;
1A
agonists. Also disclosed are &agr;
1A
agonist compositions and a method of activating &agr;
1
adrenoceptors in a mammal.
公式I1的化合物在治疗由或减轻α1A激动剂预防的疾病方面非常有用。此外,还披露了α1A激动剂组合物和在哺乳动物体内激活α1
肾上腺素能受体的方法。