申请人:Smith Kline & French Laboratories Limited
公开号:US04111935A1
公开(公告)日:1978-09-05
Substituted derivatives of 3-chloro-6-phenylpyridazine which are useful intermediates in the preparation of substituted phenylhydrazinopyridazines which have .beta.-adrenergic blocking and vasodilator activity.
3-氯-6-苯基吡啶嗪的取代衍生物是制备具有β-肾上腺素受体阻滞和血管扩张活性的取代苯基肼吡啶嗪的有用中间体。