Synthesis, structure and affinity of novel 3-alkoxy-1,2-dihydro-3H-1,4-benzodiazepin-2-ones for CNS central and peripheral benzodiazepine receptors
作者:Sergey Andronati、Ekaterina Semenishyna、Victor Pavlovsky、Yuriy Simonov、Svetlana Makan、Irina Boyko、Natalya Burenkova、Maria Gdaniec、Pascal Cardinael、Jean-Philippe Bouillon
DOI:10.1016/j.ejmech.2009.12.027
日期:2010.4
A series of novel 3-alkoxy-1,2-dihydro-3H-1,4-benzodiazepin-2-ones (7-15) was synthesized and their in vitro affinity for both the central benzodiazepine receptor (CBR) and the peripheral benzodiazepine receptor (PBR) of rat brain was studied. Racemic mixture of 7-bromo-3-(2-methoxy)ethoxy-5-phenyl-1,2-dihydro-3H-1,4-benzodiazepin-2-one (13) was separated into enantiomers 14, 15 by chiral HPLC. Absolute
合成了一系列新型的3-烷氧基-1,2-二氢-3 H -1,4-苯并二氮杂-2-酮(7-15),它们对中心苯并二氮杂receptor受体(CBR)和周围物质均具有体外亲和力研究了大鼠脑中的苯二氮卓类受体(PBR)。的外消旋混合物7-溴-3-(2-甲氧基)乙氧基-5-苯基-1,2-二氢-3- ħ -1,4-苯并二氮杂-2-酮(13)分成对映体14,15通过手性HPLC。R-对映体15的绝对构型通过X射线衍射分析法确定。的S-对映体的亲合性14为CBR(ІC 50 = 245 nm)的比的R-对映体的亲和性的20倍以上15(ІC 50 = 4930纳米)。所有报道的化合物均显示出对CBR相对于PBR的高选择性((C 50(PBR)> 10000 nM)。 在合成的3-烷氧基-1,2-二氢-3 H -1,4-苯并二氮杂-2-酮中,化合物12显示为有效的(IC 50 = 9 nM)和选择性的CBR配体。