Synthesis of 2-phenyl-1H-imidazo[4,5-b]pyridine as type 2 diabetes inhibitors and molecular docking studies
作者:Muhammad Taha、Nor Hadiani Ismail、Syahrul Imran、Izzatul Ainaa、Manikandan Selvaraj、Mohd syukri baharudin、Muhammad Ali、Khalid Mohammed Khan、Nizam Uddin
DOI:10.1007/s00044-017-1806-0
日期:2017.5
A series of imidazo[4,5-b]pyridines (3–32) was synthesized and evaluated for their ability to inhibit Baker’s yeast α-glucosidase enzyme. The IC50 values for all compounds were in the range of 13.5–93.7 µM with compound 15, a 2,4-dihydroxy-substituted analog, displayed the most potent activity potential. Structure–activity relationship strongly suggested the presence of hydroxyl group at aromatic side
一系列咪唑并[4,5的b ]吡啶(3 - 32)合成并评价它们抑制面包酵母能力α葡糖苷酶的酶。所有化合物的IC 50值均在13.5–93.7 µM的范围内,其中化合物15是2,4-二羟基取代的类似物,具有最大的活性潜力。结构与活性之间的关系强烈表明,芳香族侧链上存在羟基是导致抑制潜力的主要因素。研究结果还表明,在邻位和对位具有羟基的化合物能够抑制α-葡糖苷酶有效。该实验观察得到了对人肠道麦芽糖酶-葡糖淀粉酶(PDB ID:3TOP)的对接研究的进一步支持。化合物15的咪唑并吡啶的–NH–基与Asp1526形成氢键,而邻苯二酚的两个羟基与Asp1279形成H键。咪唑并吡啶环通过与Phe1560的π - π堆积以及其他与Pro1159,Tyr1167,Asp1157,Met1421,Trp1369,Pro1318和Lys1460的侧链有关的疏水相互作用而得到很好的稳定。邻苯二酚环还与Phe15