Synthesis and Biological Evaluation of Novel 9-Heteroaryl Substituted 7-Chloro-4,5-dihydro-4-oxo-1,2,4-triazolo[1,5-a]quinoxaline-2-carboxylates (TQX) as (R,S)-2-amino-3-(3-hydroxy-5-methylisoxazol-4-yl)propionic Acid (AMPA) Receptor Antagonists
作者:Daniela Catarzi、Vittoria Colotta、Flavia Varano、Guido Filacchioni、Paola Gratteri、Jacopo Sgrignani、Alessandro Galli、Chiara Costagli
DOI:10.1248/cpb.56.1085
日期:——
(R,S)-2-amino-3-(3-hydroxy-5-methylisoxazol-4-yl)propionic acid (AMPA) receptor antagonists. These compounds ensue from the structural modification of previously reported 8-heteroaryl-TQXs which were endowed with high affinity and selectivity for the AMPA receptor. All the newly synthesized compounds were biologically evaluated for their binding at the AMPA receptor. Gly/N-methyl-D-aspartic acid (NMDA)
在本文中,我们报告了一些新的4,5-二氢-4-氧代-1,2,4-三唑并[1,5-a]喹喔啉-2-羧酸酯衍生物(TQXs)的研究,这些衍生物带有含氮9位杂环,并设计为(R,S)-2-氨基-3-(3-羟基-5-甲基异恶唑-4-基)丙酸(AMPA)受体拮抗剂。这些化合物来自先前报道的8-杂芳基-TQX的结构修饰,所述8-杂芳基-TQX具有对AMPA受体的高亲和力和选择性。从生物学上评估所有新合成的化合物在AMPA受体上的结合。进行了甘氨酸/ N-甲基-D-天冬氨酸(NMDA)和海藻酸(KA)高亲和力结合测定,以评估报道的衍生物对AMPA受体的选择性。这项研究产生了一些新的TQX,其效力不及参考化合物,并且具有混合的AMPA和Gly / NMDA受体结合亲和力。为了合理化实验结果,通过将一些TQX衍生物与AMPA受体模型对接进行了分子建模研究。