Synthesis and structural investigation of some pyrimido[5,4-c]quinolin-4(3H)-one derivatives with a long-chain arylpiperazine moiety as potent 5-HT1A/2A and 5-HT7 receptor ligands
作者:Wieslawa Lewgowd、Andrzej J. Bojarski、Malgorzata Szczesio、Andrzej Olczak、Marek L. Glowka、Stefan Mordalski、Andrzej Stanczak
DOI:10.1016/j.ejmech.2011.04.060
日期:2011.8
A series of new pyrimido[5,4-c]quinolin-4(3H)-ones with variable length of the spacer between amide and 4-arylpiperazine moiety were prepared to further explore the role of a terminal portion in the serotonergic activity. The majority of compounds demonstrated high in vitro affinity for 5-HT1A receptor, and moderate-to-low affinity for 5-HT2A and 5-HT7 receptors. X-ray analysis, two-dimensional NMR
制备了一系列新的嘧啶并[5,4 - c ]喹啉-4(3 H)-,其酰胺和4-芳基哌嗪部分之间的间隔长度可变,以进一步探索末端部分在血清素能活性中的作用。大多数化合物对5-HT 1A受体具有较高的体外亲和力,对5-HT 2A和5-HT 7受体具有中等至低的亲和力。进行了X射线分析,二维NMR,构象研究以及对接至5-HT 1A受体模型,以研究所选5-HT 1A的构象偏好。在不同环境中的受体配体。在固态,DMSO(质子化形式)中发现了四亚甲基衍生物的扩展构象,并且在模拟水环境中进行构象分析时,其作为整体能量的最小值。通过对接至一组100个受体模型获得的得分最高的复合物中的配体几何形状完全延伸,或在向斜构象中带有中心间隔物扭转。