From a medical point of view lot of existing antibiotics became unusable because microbial gained strong antibiotic resistance. The combination of two compounds in one core may lead to kill such type of pathogens. Herein, we developed pyranopyrazole derivatives comprising benzoxazole moiety by green approach strategy and studied their antimicrobial performance on four bacteria and two fungi. As a result, most of the compounds delivered reliable toxicity to kill the pathogens. In those, 6a exhibited considerable activity against the microbial pathogens. Moreover, compounds 6d, 6l, and 6n showed prominent antibacterial activity. In addition, molecular docking studies of docked compounds revealed the strong bonding interaction with DNA-Gyrase and were docked into the intercalation location of DNA of the DNA-gyrase complex. The molecule bounded to the DNA stabilized by the H bonds, hydrophobic interactions, and π-π interaction. In addition, the linked 5-chlorobenazoxazole structure stabilized by the DT-8 and DG2009 of the F chain with pi-pi interactions. From the computer-aided results, it was observed that compound 6a demonstrated maximum docking score −10.0 kcal/ mole towards DNA-gyrase. Overall, this investigation suggested that these biologically active compounds can be utilized as leads for preclinical studies with the goal of developing newer antimicrobial drugs.
In an effort for development of innovative biologically active agents, a sequence of 1,4‐dihydropyridine analogues was synthesized through the green synthetic method. In addition, all compounds were evaluated for their cytotoxic activities against three human cancer cell lines and mouse melanoma and figured out the most active compounds. Besides, promoter reusability, easy handling of the chemical reagent, simple reaction process, time minimization, ethanol–water solvent compatibility, and cost reduction reagent are key tools for this fruitful path. Thus, these examinations recommended that dihydropyridine and their derivatives are motivating moieties for the discovery of new anticancer drugs.
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