申请人:Smith Kline & French Laboratories Limited
公开号:US05066653A1
公开(公告)日:1991-11-19
Phosphodiesterase (type III) inhibitors having the formula: ##STR1## wherein R.sup.4 is hydrogen and A is a dihydro-1,2,4-triazin-3-one group or a dihydro-1,2,4-triazin-6-one group which are useful in stimulating cardiac activity and in treating congestive heart failure and bronchoconstriction, pharmaceutical compositions including these inhibitors, and methods of using these compounds to produce phosphodiesterase (type III) inhibition in mammals.
翻译结果如下:
磷酸二酯酶(III型)抑制剂的化学式为:##STR1## 其中R.sup.4为氢,A为二氢-1,2,4-三嗪-3-酮基团或二氢-1,2,4-三嗪-6-酮基团,可用于刺激心脏活动,治疗充血性心力衰竭和支气管收缩,包括这些抑制剂的制药组合物以及使用这些化合物在哺乳动物中产生磷酸二酯酶(III型)抑制的方法。