Benzodiazepine receptor ligands. 8: Synthesis and pharmacological evaluation of new pyrazolo[5,1-c] [1,2,4]benzotriazine 5-oxide 3- and 8-disubstituted: High affinity ligands endowed with inverse-agonist pharmacological efficacy
作者:Gabriella Guerrini、Annarella Costanzo、Giovanna Ciciani、Fabrizio Bruni、Silvia Selleri、Camilla Costagli、François Besnard、Barbara Costa、Claudia Martini、Gaetano De Siena、Petra Malmberg-Aiello
DOI:10.1016/j.bmc.2005.08.058
日期:2006.2
The synthesis and the binding study of new 3-arylesters and 3-heteroarylpyrazolo[5,1-c][1,2,4]benzotriazine 5-oxide 8-substituted are reported. The nature of these substituents (in terms of lipophilic and electronic features) seems to influence the binding affinity. High-affinity ligands were studied in mice in vivo for their pharmacological effects, considering six potential benzodiazepine actions:
报道了新的3-芳基酯和3-杂芳基吡唑并[5,1-c] [1,2,4]苯并三嗪5-氧化物8-取代的合成和结合研究。这些取代基的性质(就亲脂性和电子特性而言)似乎会影响结合亲和力。研究了体内高亲和力配体的药理作用,其中考虑了六种潜在的苯二氮卓类作用:抗焦虑作用,肌肉松弛作用,运动协调,抗惊厥作用,自发运动和乙醇增强作用。化合物4d和6d显示出反向激动剂特征。还评估了这些化合物在GABAA受体复合物(GABAA / BzR复合物)亚型上苯并二氮杂位处的结合,以评估其亚型选择性。