Enantiomerically Pure 2-Methyltetrahydro-3-benzazepin-1-ols Selectively Blocking GluN2B Subunit Containing <i>N</i>-Methyl-<scp>d</scp>-aspartate Receptors
作者:Bastian Tewes、Bastian Frehland、Dirk Schepmann、Dina Robaa、Tanaporn Uengwetwanit、Friedemann Gaube、Thomas Winckler、Wolfgang Sippl、Bernhard Wünsch
DOI:10.1021/acs.jmedchem.5b00897
日期:2015.8.13
The phenols 32 reveal slightly higher GluN2B affinity than the methyl ethers 21. The GluN2B affinity increases in the order (1R,2S) < (1S,2S) < (1S,2R) < (1R,2R). The stereoisomeric phenols (R,R)-32 and (S,R)-32 show the highest GluN2B affinity and the highest cytoprotective activity. Both compounds represent GluN2B selective allosteric NMDA receptor antagonists. Docking of the 3-benzazepin-1-ols into
的手性池合成显影以获得全部四个立体异构体的2-甲基-3-(4-苯基丁基)四氢-3-苯并吖庚因-1-醇21,31,和32在七至八步骤序列。苯酚32的GluN2B亲和力比甲基醚21高。GluN2B亲和力以(1 R,2 S)<(1 S,2 S)<(1 S,2 R)<(1 R,2 R)的顺序增加。立体异构酚(R,R)-32和(S,R)-32显示出最高的GluN2B亲和力和最高的细胞保护活性。两种化合物均代表GluN2B选择性变构NMDA受体拮抗剂。将3-benzazepin-1-ols停泊到结晶的GluN1b / GluN2B N末端结构域的艾芬地尔结合位点会导致自由结合能,这与实验确定的GluN2B亲和力很好地相关。立体异构酚(S,S)-32,(R,R)-32和(S,R)-32的相似GluN2B亲和力由3-苯并ze庚因骨架的不同结合方式解释。苄基醚31揭示了出乎意料的高GluN2B亲和力,但未显