Novel synthesis of (S)-1-[5-(benzoylamino)-1,4-dioxo-6-phenylhexyl]-L-proline and analogs: potent angiotensin converting enzyme inhibitors
作者:Robert F. Meyer、Ernest D. Nicolaides、Francis G. Tinney、Elizabeth A. Lunney、Ann Holmes、Milton L. Hoefle、Ronald D. Smith、Arnold D. Essenburg、Harvey R. Kaplan、Ronald G. Almquist
DOI:10.1021/jm00140a010
日期:1981.8
in vitro angiotensin converting enzyme (ACE) inhibitory activity of 1 was confirmed. Some of the novel analogues (6, 11, 13, and 17) were also found to be potent inhibitors of ACE in vitro with an IC50 of 1.4-8.8 x 10(-9) M (IC50 for captopril = 0.9 x 10(-8) M). In vivo these compounds (6, 11, 17, and 18) were much less active than captopril, especially by the oral route. Against angiotensin I (AI) challenge
开发了一种新的合成(S)-1- [5-(苯甲酰氨基)-1,4-二氧代-6-苯基己基] -L-脯氨酸(1)和23种类似物的方法。δ-(酰基氨基)-γ-酮酸中间体是使用3-羰基甲氧基丙酰氯通过改良的Dakin-West反应获得的。L-脯氨酸的酰化和非对映异构体混合物的重结晶在三个反应步骤中得到光学纯的标题化合物。证实了体外血管紧张素转化酶(ACE)的抑制活性为1。还发现一些新型类似物(6、11、13和17)是体外有效的ACE抑制剂,IC50为1.4-8.8 x 10(-9)M(卡托普利的IC50 = 0.9 x 10(- 8)M)。在体内,这些化合物(6、11、17和18)的活性比卡托普利低得多,尤其是通过口服途径。针对血压正常的大鼠的血管紧张素I(AI)攻击,1和6在30 mg / kg口服时产生小于50%的抑制,但是在3 mg / kg iv下产生57至82%的抑制。两种途径的抑制持续不到