Conformational and configurational behaviour of κ-agonistic 3,7-diazabicyclo[3.3.1]nonan-9-ones—synthesis, nuclear magnetic resonance studies and semiempirical PM3 calculations
作者:Tom Siener、Ulrike Holzgrabe、Susanne Drosihn、Wolfgang Brandt
DOI:10.1039/a806641h
日期:——
7-diazabicyclo[3.3.1]nonan-9-one 1,5-diesters were found to have a high affinity for κ-opioid receptors. To develop highly potent analgesics, the purpose of this study was the synthesis and the structural characterisation of the novel 2,4-bis(4-nitrophenyl), 2,4-bis(3-nitrophenyl), 2,4-bis(4-quinolyl), 2,4-bis(2-quinolyl), 2,4-bis(1-naphthyl) and 2,4-bis(2-naphthyl) substituted 3,7-diazabicyclo[3.3.1]nonan-9-one
发现2,4-二芳基取代的3,7-二氮杂双环[3.3.1]壬南-9-1,1,5-二酯对κ-阿片样物质受体具有高亲和力。为了开发高效的止痛药,本研究的目的是新型2,4-双(4-硝基苯基),2,4-双(3-硝基苯基),2,4-双(4)的合成和结构表征-喹啉基),2,4-双(2-喹啉基),2,4-双(1-萘基)和2,4-双(2-萘基)取代的3,7-二氮杂双环[3.3.1] nonan-9 NMR光谱法和分子建模的方法,得到一个1,5-二酯。可以证明,几种衍生物经历反式-顺式连接到刚性骨架上的芳环的-异构化,而另一些则显示出旋转异构化。进行了半经验的量子化学PM3计算,以分析异构体的热力学稳定性以及反式-顺式-或顺式-反式转化的机理。