申请人:Shionogi & Co., Ltd.
公开号:US04562256A1
公开(公告)日:1985-12-31
1,6-Dialkyl-3-substituted-4-nitrophenyl-4,7-dihydropyrazolo[3,4-b]pyridine- 5-carboxylic acid esters as Ca blocker having potent antihypertensive and coronary vasodilating actions and useful in treatment of diseases in circulatory system such as angina pectoris, hypertension, cerebrovascular dysfunction, arrhythmia, etc. with no systole inhibitory action, prepared from nitrobenzylideneacetoacetic acid esters on reaction with 3-substituted-5-amino-1-alkylpyrazoles.
1,6-双烷基-3-取代-4-硝基苯基-4,7-二氢吡唑并[3,4-b]吡啶-5-羧酸酯是一种钙拮抗剂,具有强效的降压和冠状动脉扩张作用,可用于治疗循环系统疾病,如心绞痛、高血压、脑血管功能障碍、心律失常等,且无收缩期抑制作用。该化合物是由硝基苯基乙烯基乙酮酸酯与3-取代-5-氨基-1-烷基吡唑反应制备而成。