3-(Aminoalkyl)-1,2,3,4-tetrahydro-5H-[1]benzopyrano[3,4-c]pyridin-5-ones as potential anticholinergic bronchodilators
作者:David T. Connor、Paul C. Unangst、Charles F. Schwender、Roderick J. Sorenson、Mary E. Carethers、Chester Puchalski、Richard E. Brown、Martin P. Finkel
DOI:10.1021/jm00123a032
日期:1989.3
A series of 3-(aminoalkyl)benzopyrano[3,4-c]pyridin-5-ones was prepared and tested as potential orally active anticholinergic bronchodilators. Inhibition of methacholine-induced collapse in guinea pigs and inhibition of pilocarpine-induced bronchoconstriction in dogs served as in vivo models. Simultaneous measurement of salivary inhibition in the dog model allowed determination of a pulmonary selectivity
制备了一系列3-(氨基烷基)苯并吡喃并[3,4-c]吡啶基-5-酮,并测试了它们作为潜在的口服抗胆碱能支气管扩张剂。在豚鼠中甲乙酰胆碱诱导的塌陷的抑制和狗毛果芸香碱诱导的支气管收缩的抑制被用作体内模型。在狗模型中唾液抑制的同时测量允许确定肺的选择性比。通过苯酚与哌啶β-酮酯的Pechman缩合制备苯并吡喃并[3,4-c]吡啶-5-酮母环系统。用氨基烷基卤化物或用1-氯-2-丙酮烷基化,然后进行还原胺化,得到3-取代的目标化合物。支气管扩张药的效力与围绕侧链末端胺功能的空间拥挤程度有关。将碳α上的甲基取代基加到末端胺上通常会提高效力或肺部选择性。在进行二次药理学评估后,选择了命名为CI-923的化合物7a作为支气管扩张药进行临床试验。