γ-Amino butyric acid analogs as novel potent GABA-AT inhibitors: molecular docking, synthesis, and biological evaluation
作者:S. K. Bansal、B. N. Sinha、R. L. Khosa
DOI:10.1007/s00044-012-0023-0
日期:2013.1
acid analogs were designed and synthesized as novel potent GABA-AT inhibitors. A structure–activity relationship study was performed by correlating the effect of different substituents with GABA-AT inhibitory activity of the title compounds. The preliminary bioassays showed that acid hydrazones exhibited excellent inhibitory activities in micromolar (0.07–0.56 μM) range, while Schiff’s bases showed
设计并合成了一系列新的γ-氨基丁酸类似物,作为新型有效的GABA-AT抑制剂。通过将不同取代基的作用与标题化合物的GABA-AT抑制活性相关联,进行了结构活性关系研究。初步的生物测定表明,酸在微摩尔(0.07–0.56μM)范围内表现出出色的抑制活性,而席夫氏碱则表现出可变的结果。最有效的化合物4-氨基-N '-[(1 Z)-1-(2-溴苯基)亚乙基]丁酰肼(AHG177)显示抑制作用(IC 50)为0.073μM。氨基丁酸酯转氨酶是一种吡ido醛-P酶,它遵循双乒乓机制,并且以吡x胺的形式仅与琥珀酸半醛和2-氧戊二酸酯即可轻松进行氨基转移。该结果强烈表明,只有酶的吡ido醛形式能够与配体反应。我们的发现为将该方案扩展到不同的数据库开辟了可能性,以便在合理的药物设计过程中为有希望的靶标寻找新的潜在抑制剂。