Design, synthesis, and antihypertensive activity of new pyrimidine derivatives endowing new pharmacophores
作者:Ahmed M. Farghaly、Omaima M. AboulWafa、Yaseen A. M. Elshaier、Waleed A. Badawi、Haridy H. Haridy、Heba A. E. Mubarak
DOI:10.1007/s00044-019-02289-6
日期:2019.3
A new series of achiral pyrimidine derivatives based on nifedipine-like structure was designed and synthesized. These pyrimidyl derivatives contained hydrazine, hydrazones, acetohydrazide, differently substituted benzylidene functionalities, benzosulfohydrazine, various heterocycles such as pyrazole, pyrazolidinedione, thiazoline, and thiazolidinone rings, and fused ring systems such as triazolopyrimidine
设计合成了一系列新的基于硝苯地平样结构的非手性嘧啶衍生物。这些嘧啶基衍生物包含肼,,乙酰肼,不同取代的亚苄基官能团,苯并磺酰肼,各种杂环如吡唑,吡唑烷二酮,噻唑啉和噻唑烷酮环,以及稠合环系统如三唑并嘧啶和嘧啶三嗪环。与硝苯地平治疗的兔子相比,化合物5a,5b,11b,8b,9b–d和15b的兔子平均动脉血压(MABP)降低了51.4至78.2 mmHg。在这些衍生物中,化合物5a,5b,9b和9c被发现对兔主动脉制剂具有钙通道阻断活性。与硝苯地平(57.6%)相比,它们的舒张范围为89.2%至74.4%,并且心率下降。化合物的组织病理学作用5a,5b中的内皮型一氧化氮合酶(eNOS)的表达也Ë xamined对大鼠主动脉。对于化合物5b,在主动脉内皮中看到了eNOS免疫染色的强烈表达,表明它通过激活主动脉中的eNOS表达降低了血压。