Synthesis, Characterization and Biological Evaluation of Some New Isoxazoline Derivatives
作者:Dinesh K. Jain、Neeraj Goyal、Upendra Bhadoriya
DOI:10.14233/ajchem.2013.12899
日期:——
Isoxazoline represents a unique class of nitrogen- and oxygen-containing five-membered heterocycles, a class of compounds of great importance in biological chemistry. Isoxazoline is considered as one of the most potent antimicrobial compound. Isoxazoline derivatives have been found to possess appreciable antitubercular activity against Mycobacterium tuberculosis. The object of antitubercular drug discovery has become a subject of greater challenge due to increasing incidences of tubercular drug resistance. The study aimed to synthesize potent antitubercular isoxazline derivatives. Different substituted isoxazoline derivatives have been synthesized by cyclization of substituted chalcone derivatives in presence of hydroxylamine hydrochloride. Synthesized derivatives were characterized by melting point, TLC, FT-IR, 1H NMR and MS spectroscopy. Synthesized conjugates were evaluated for in vitro antitubercular activity against M. tuberculosis. Comparable antitubercular activity was obtained as compared to isoniazide.
异噁唑啉是一类独特的含氮和含氧的五元杂环化合物,这类化合物在生物化学中具有重要意义。异噁唑啉被认为是最有效的抗菌化合物之一。研究发现,异噁唑啉衍生物对结核分枝杆菌具有显著的抗结核活性。由于结核药物耐药性事件的增加,抗结核药物发现的目标变得更加具有挑战性。本研究旨在合成高效的抗结核异噁唑啉衍生物。通过在羟胺 hydrochloride 存在下对取代的查尔酮衍生物进行环化,合成了不同取代的异噁唑啉衍生物。合成的衍生物通过熔点、薄层色谱 (TLC)、傅里叶变换红外光谱 (FT-IR)、质子核磁共振 (1H NMR) 和质谱 (MS) 进行表征。合成的化合物在体外抗结核活性方面与异烟肼进行了比较,获得了相似的抗结核活性。