Design, synthesis, antitrypanosomal activity, DNA/RNA binding and in vitro ADME profiling of novel imidazoline-substituted 2-arylbenzimidazoles
作者:Andrea Bistrović Popov、Luka Krstulović、Sanja Koštrun、Dubravko Jelić、Ana Bokulić、Marijana Radić Stojković、Iva Zonjić、Martin C. Taylor、John M. Kelly、Miroslav Bajić、Silvana Raić-Malić
DOI:10.1016/j.ejmech.2020.112802
日期:2020.12
Novel imidazoline benzimidazole derivatives containing diversely substituted phenoxy moieties were synthesized with the aim of evaluating their antitrypanosomal activity, DNA/RNA binding affinity and in vitro ADME properties. The presence of the diethylaminoethyl subunit in 18a–18c led to enhanced antitrypanosomal potency, particularly for 18a and 18c, which contain unsubstituted and methoxy-substituted
A series of tetrahydropyrimidinyl-substituted benzimidazoles attached to various aliphatic or aromatic residues via phenoxymethylene were synthesised to investigate their antibacterial activities against selected Gram-positive and Gram-negative bacteria. The influence of the type of substituent at the C-3 and C-4 positions of the phenoxymethylene linker on the antibacterial activity was observed, showing
合成了一系列通过苯氧基亚甲基连接到各种脂肪族或芳香族残基上的四氢嘧啶基取代的苯并咪唑,以研究它们对选定的革兰氏阳性和革兰氏阴性细菌的抗菌活性。观察了苯氧亚甲基连接体C-3和C-4位取代基类型对抗菌活性的影响,表明芳香族部分提高了抗菌效力。在所有评估的化合物中,苯甲酰基取代的苯并咪唑衍生物15a是最活跃的化合物,特别是针对革兰氏阴性病原体大肠杆菌( MIC = 1 μg mL -1)和粘膜炎莫拉氏菌(MIC = 2 μg mL -1 ))。化合物15a还对敏感和耐药的化脓性链球菌菌株表现出最有希望的抗菌活性(MIC = 2 μg mL -1)。显着的稳定作用和正诱导的 CD 带强烈支持最具生物活性的苯并咪唑在富含 AT 的 DNA 小沟内的结合,这与对接研究一致。预测的物理化学和 ADME 特性位于类药物空间内,但膜渗透性较低,需要进一步优化。我们的研究结果鼓励进一步开发新型结构相关的 5(
Synthesis, Antiproliferative Evaluation and QSAR Analysis of Novel Halogen- and Amidino-Substituted Benzothiazoles and Benzimidazoles
HuT78 cells with IC50 < 10 µM. Moreover, compounds 45c and 46c containing the methoxy group at the phenoxy unit were not toxic to normal BJ cells. Of all the tested compounds, benzimidazole 45a with the unsubstituted phenoxy central core showed the most pronounced cell growth inhibition on THP1 cells in the nanomolar range (IC50 = 0.8 µM; SI = 70). QSAR models of antiproliferative activity for benzazoles