Design, synthesis and biological evaluation of 7-substituted 4-phenyl-6H-imidazo[1,5-a]thieno[3,2-f] [1,4]diazepines as safe anxiolytic agents
作者:Angela Di Capua、Annalisa Reale、Marco Paolino、Giulia Chemi、Simone Brogi、Andrea Cappelli、Gianluca Giorgi、Fedora Grande、Lorenzo Di Cesare Mannelli、Carla Ghelardini、Rosanna Matucci、Antonio Garofalo、Maurizio Anzini
DOI:10.1016/j.ejmech.2020.112405
日期:2020.8
A series of 4-phenyl-6H-imidazo[1,5-a]thieno[3,2-f][1,4]diazepine-7-carboxylate esters were synthesized and tested as central benzodiazepine receptor (CBR) ligands by the ability to displace [3H]flumazenil from rat cortical membranes. All the compounds showed high affinity with IC50 values ranging from 5.19 to 16.22 nM. In particular, compounds 12b (IC50 = 8.66 nM) and 12d (IC50 = 5.19 nM) appeared
合成了一系列的4-苯基-6 H-咪唑并[1,5- a ]噻吩并[3,2- f ] [1,4]二氮杂-7-羧酸酯,并通过以下方法测试其为中心苯并二氮杂receptor受体(CBR)的配体从大鼠皮质膜置换[ 3 H]氟马西尼的能力。所有化合物均表现出高亲和力,IC 50值为5.19至16.22 nM。尤其是,化合物12b(IC 50 = 8.66 nM)和12d(IC 50 = 5.19 nM)是最有效的配体,因为它们的亲和力值明显低于地西epa(IC 50 = 18.52 nM)。检查了化合物12a-f由于它们在小鼠体内具有药理作用,因此考虑了五种潜在的苯二氮卓(BDZ)作用:抗焦虑,抗惊厥,健忘,催眠和运动功能。所有新合成的化合物均能诱导明显的抗焦虑作用,其中包括化合物12f保护的戊四唑(PTZ)引起的惊厥以剂量依赖的方式在30 mg / kg时达到40%的作用。此外,所有化合物均能