Soft Drugs. 12. Design, Synthesis, and Evaluation of Soft Bufuralol Analogues
作者:Sung-Kwan Hwang、Attila Juhasz、Sung-Hwa Yoon、Nicholas Bodor
DOI:10.1021/jm9904654
日期:2000.4.1
esmolol decreased HR and mean arterial pressure (MAP) by 40% and 60%, respectively. The soft drugs at doses ranging only between 2 and 4 micromol/kg/min resulted in a 20-40% decrease in HR and a 30-50% reduction in MAP. However, the time courses of both the bradycardic and hypotensive effects of the soft drugs were superimposable to that of esmolol, diminishing within 60 min after the discontinuation
在寻找更有效但仍起短效作用的β-受体阻滞剂(BB)时,丁富卢尔酸性非活性代谢物的甲基,乙基,异丙基,叔丁基,环己基,2-(1-金刚烷基)乙基和甲基硫代甲基酯基于“非活性代谢物”方法合成。血液和组织酯酶对酯键的切割会使这些化合物迅速失活,从而导致作用时间极短。通过记录大鼠的心电图和动脉内血压(BP)来表征新的“软” BB的β拮抗剂效能和作用的时程。在异丙肾上腺素诱发的心动过速模型中,布法洛尔以1 mg / kg(3.8 micromol / kg)的静脉注射剂量可降低心率(HR)至少2小时,而软性药物的作用仅持续10-30分钟等摩尔剂量。非活性代谢物未显着降低HR。该系列化合物的前四个成员显示出最高的β受体阻滞效果,范围为bufuralol的25%至50%。接下来,与艾司洛尔比较,评估了这些最具活性的化合物对静息HR和BP的影响。艾司洛尔以20 micromol / kg / min的速度输