Synthesis and Structure-Activity Relationships of (−)-cis-N-Normetazocine-Based LP1 Derivatives
作者:Lorella Pasquinucci、Carmela Parenti、Emanuele Amata、Zafiroula Georgoussi、Paschalina Pallaki、Valeria Camarda、Girolamo Calò、Emanuela Arena、Lucia Montenegro、Rita Turnaturi
DOI:10.3390/ph11020040
日期:——
substituted compounds resulted in MOR partial agonists and DOR/KOR antagonists. By contrast, the derivatives 13–15 resulted as MOR antagonists, and the derivative 16 as a MOR/KOR antagonist (pKBMOR = 6.12 and pKBKOR = 6.11). Collectively, these data corroborated the critical role of the N-substituent in (−)-cis-N-Normetazocine scaffold. Thus, the new synthesized compounds could represent a template to
(-)-顺式-N-去甲唑嗪代表一种能够模拟内源性阿片肽的酪胺部分的刚性骨架,引入不同的N-取代基会影响相应配体对MOR(μ阿片受体),DOR(δ)的亲和力和功效。阿片受体)和KOR(κ阿片受体)。我们之前已经确定了LP1,MOR / DOR多靶点阿片样物质配体,具有与(-)-顺式-N-去甲唑嗪骨架相连的N-苯基丙酰胺基取代基。在这里,我们报道了新化合物10–16的合成,竞争结合和钙动员分析,这些化合物与LP1的区别在于N取代基的性质。在放射性配体结合实验中,以苯环对位的吸电子或给电子基团为特征的化合物10-13对KOR的亲和力有所提高(Ki = 0.85-4。与LP1(7.5μM)相比为80μM)。相反,相对于LP1值,它们的MOR和DOR亲和力更差(Ki = 0.18–0.28μM和Ki = 0.38–1.10μM)(Ki = 0.049和0.033μM)。记录了化合物14-16的类似趋