Thiophene systems. 9. Thienopyrimidinedione derivatives as potential antihypertensive agents
作者:Ronald K. Russell、Jeffery B. Press、Richard A. Rampulla、James J. McNally、Robert Falotico、Joan A. Keiser、David A. Bright、Alfonso Tobia
DOI:10.1021/jm00117a019
日期:1988.9
compounds were least potent. Neither alkylation nor acylation at the N-1 position improved the antihypertensive effects as compared to hydrogen. The three thienopyrimidine-2,4-diones (3-5) that contain a [(2-methoxyphenyl)piperazinyl]ethyl moiety at N-3 and hydrogen at N-1 were found to be potent oral antihypertensive agents in the SHR with doses (mg/kg, po) for reducing systolic blood pressure (SBP) by 50
一系列在N-3处被(苯基哌嗪基)烷基取代的噻吩并[3,4-d]-,噻吩并[3,2-d]-和噻吩并[2,3-d]嘧啶-2,4-二酮具有合成并评估自发性高血压大鼠(SHR)的降压作用。将这49种化合物与血管扩张剂标准prazosin和等排性喹唑啉-2,4-二酮SGB 1534进行了比较。研究了苯环在2、3或4位上的取代,以及在2位上的取代。比4-取代更有效,而异构的3-取代化合物的效力最低。与氢相比,N-1位的烷基化或酰化均未改善抗高血压作用。三个thienopyrimidine-2,发现在SHR中,剂量为(mg / kg,口服)的强效口服降压药为在N-3处含有[(2-甲氧基苯基)哌嗪基]乙基部分且在N-1处含有氢的4-二酮(3-5)。 ),以使收缩压(SBP)分别降低0.21、0.19和1.0的50 mmHg(ED-50SBP)。通过测量使SHR中的去氧肾上腺素升压反应拮抗50%(ED50)