(Mercaptopropanoyl)indoline-2-carboxylic acids and related compounds as potent angiotensin converting enzyme inhibitors and antihypertensive agents
作者:Dong H. Kim、Charles J. Guinosso、George C. Buzby、David R. Herbst、Ronald J. McCaully、Thomas C. Wicks、Robert L. Wendt
DOI:10.1021/jm00357a014
日期:1983.3
1-(3-Mercapto-2-methyl-1-oxopropyl)indoline-2-carboxylic acids (7b) and related compounds were synthesized in order to examine their ability to inhibit angiotensin converting enzyme (ACE) and to reduce the systolic blood pressure of spontaneously hypertensive rats (SHR). All four possible stereoisomers of the precursor 1-[3-(benzoylthio)-2-methyl-1-oxopropyl]indoline-2-carboxylic acid (6b) were characterized
合成了1-(3-巯基-2-甲基-1-氧丙基)二氢吲哚-2-羧酸(7b)及其相关化合物,以检测其抑制血管紧张素转化酶(ACE)和降低收缩压的能力自发性高血压大鼠(SHR)。前体1- [3-(苯甲硫基)-2-甲基-1-氧丙基]二氢吲哚-2-羧酸(6b)的所有四种可能的立体异构体均具有绝对立体化学特征。通过用2-甲氧基乙胺处理方便地除去前体的苯甲酰基以得到7b。苯甲酰基衍生物6的四个立体异构体中的三个以下列顺序显示了体外ACE抑制活性:6b(S,S)大于6b(S,R)大于6b(R,S)。具有R,R构型的立体异构体基本上是无活性的。用Et或OMe组取代吲哚核的C5处,仅引起抑制活性的微小变化。硫醇7b(S,S)是这项研究中合成的最具活性的ACE抑制剂,其体外效能是卡托普利的3倍。与卡托普利相比,效力的增强可能是由于7b(S,S)的疏水性增加,并表明在ACE的活性位点存在疏水口袋。在自发性高血压大鼠