Synthesis, antimicrobial, and cytotoxic activities of novel benzimidazole derivatives bearing cyanopyridine and 4-thiazolidinone motifs
摘要:
A series of 6-(1H-benzo[d]imidazol-2-yl)-2-(2-(3-nitrophenyl)-4-oxothiazolidin-yl)-4-(aryl)nicotinonitriles 5a-l were synthesized and characterized by IR, H-1 NMR, C-13 NMR, and mass spectrometry techniques. These novel compounds 5a-l were screened for their in vitro antimicrobial activity against different bacterial and fungal strains and in vitro cytotoxicity study (HeLa cell line) using MTT colorimetric assay. The results demonstrated that compounds 5c, 5e, and 5i-k exhibited excellent antibacterial activity, while compounds 5d, 5i, and 5k were found to be the most potent antifungal agents. From the standpoint of SAR studies, it was observed that the presence of electron donating groups remarkably enhanced the antimicrobial activity of newly synthesized compounds. Further, the results of preliminary MTT cytotoxicity studies on HeLa cells suggested that potent antimicrobial activity of 5c-e and 5i-k was accompanied by low cytotoxicity.
Synthesis and antimicrobial activity of some heterocyclic compounds bearing benzimidazole and pyrazoline motifs
作者:N. C. Desai、Darshan Pandya、Darshita Vaja
DOI:10.1007/s00044-017-2040-5
日期:2018.1
antimicrobial activity against gram positive (S. aureus and S. pyogenes), gram negative bacteria (E. coli and P. aeruginosa), and strains of fungi (C. albicans, A. niger, and A. clavatus). Compounds were characterized by spectroscopic techniques such as 1H NMR, 13C NMR, IR, and mass spectroscopy. The newly synthesized compounds 5b, 5i and 5j, 5k showed significant antimicrobial activity against tested
摘要一系列1-(3-(1 H-苯并咪唑-2-基)-5-芳基-4-5二氢-1 H-吡唑-1-基)-2-(萘-1-基氧基)乙酮(5a –升)被合成并评价了它们的抗微生物活性对革兰氏阳性(金黄色葡萄球菌和化脓性链球菌),革兰氏阴性细菌(大肠杆菌和绿脓杆菌),和真菌的菌株(白色念珠菌,黑曲霉,和甲。clavatus)。通过光谱技术,例如1 H NMR,13 C NMR,IR和质谱对化合物进行表征。新合成的化合物5b,5i和5j,5k显示出对测试微生物的显着抗微生物活性。 图形概要
Activation of p53 signaling and regression of breast and prostate carcinoma cells by spirooxindole-benzimidazole small molecules
作者:Assem Barakat、Saeed Alshahrani、Abdullah Mohammed Al-Majid、Abdullah Saleh Alamary、Matti Haukka、Marwa M. Abu-Serie、Alexander Dömling、Luis R. Domingo、Yaseen A. M. M. Elshaier
DOI:10.3389/fphar.2024.1358089
日期:——
quantified using IC50 values. This study highlights activation of the p53 pathway by compounds 6a and 6d, leading to upregulation of p53 expression and downregulation of cyclin D and NF-κB in treated cells. Additionally, we explored the binding affinity of spirooxindole analogs, particularly compound 6d, to MDM2, a protein involved in regulation of p53. The binding mode and position of compound 6d were