4,5-Dihydro-5-Oxo-Pyrazolo[1,5-a]Thieno[2,3-c]Pyrimidine: A Novel Scaffold Containing Thiophene Ring. Chemical Reactivity and In Silico Studies to Predict the Profile to GABAA Receptor Subtype
作者:Letizia Crocetti、Gabriella Guerrini、Fabrizio Melani、Claudia Vergelli、Maria Paola Giovannoni
DOI:10.3390/molecules28073054
日期:——
cores, never reported in the literature, are isosteres of pyrazolo[1,5-a]quinazolines (PQ), previously published by us as GABAAR subtype ligands. We introduced in the new scaffold those functions and groups (esters, ketones, alpha/beta-thiophene) that in our PQ derivatives were responsible for the activity, and at the same time, we have extensively investigated the reactivity of the new nucleus regarding
噻吩环对苯的等排取代是药物化学中广泛应用的一种化学修饰。市售的几种含有噻吩环的药物用于治疗各种病症(骨质疏松症、外周动脉疾病、精神病、焦虑症和惊厥)。考虑到这一证据并作为我们在 GABAA 受体调节剂领域研究的延续,我们设计并合成了含有噻吩环和 4,5-dihydro-5-oxo-pyrazolo[1,5-a]thieno[ 的新化合物。 2,3-c]嘧啶和吡唑并[1,5-a]噻吩并[2,3-c]嘧啶支架。此外,这些核心从未在文献中报道过,是吡唑并 [1,5-a] 喹唑啉 (PQ) 的电子等排物,我们之前将其作为 GABAAR 亚型配体发表。我们在新支架中引入了那些功能和基团(酯、酮、α/β-噻吩)在我们的 PQ 衍生物中负责活性,同时,我们广泛研究了新核在烷基化、还原、卤化和水解方面的反应性。对六种最终设计的化合物(12c–f、22a、b)进行了分子对接和动态模拟研究。动态模拟分析,应用