A series of procaterol derivatives having a substituent at the 7-position of the carbostyril moiety was synthesized. Halogenation of procaterol and its homologues gave the 7-halogeno derivatives (3). Nitration of the procaterol analogues afforded the 7-nitro derivatives (4), and the catalytic reduction of 4 gave the 7-amino derivatives (5). These compounds showed weak β-adrenoceptor stimulant activities in anesthetized dog.
我们合成了一系列普卡特罗衍
生物,其碳化
二氢吡啶分子的 7 位上有一个取代基。对普鲁卡特罗及其同系物进行卤化,可得到 7-卤代衍
生物 (3)。硝化普鲁卡特罗类似物可得到 7-硝基衍
生物(4),催化还原 4 可得到 7-
氨基衍
生物(5)。这些化合物在麻醉狗体内显示出微弱的 β
肾上腺素受体刺激活性。