The present invention relates to a compound of the formula and the pharmaceutically acceptable salts thereof wherein W is a bicyclic heterocyclic ring system. The compounds are .alpha.-1 adrenergic antagonists and are useful in the treatment of BPH; also disclosed are .alpha.-1 antagonist compositions and a method for antagonizing .alpha.-1 adrenoreceptors and treating BPH.
本发明涉及一种具有以下结构式和其药学可接受的盐的化合物,其中W是一个双环杂环环系统。这些化合物是α-1
肾上腺素受体拮抗剂,对治疗前列腺增生症(BPH)有用;还公开了α-1拮抗剂组合物以及拮抗α-1
肾上腺素受体和治疗BPH的方法。