作者:Mohamad Yusuf、Shehneela、Baldev Singh
DOI:10.14233/ajchem.2019.21726
日期:——
In the present study, pyrrolo-isoxazolidines 3(a-l) and 4(a-e), 4g, 4i, 4j have been synthesized by using the 1,3-dipolar cycloaddition reactions of nitrones 1(a-l) with ester substituted N-aryl maleimide (2b). These heterocycles have been obtained in cis and trans diastereomeric forms. The structures of newly synthesized heterocycles have been confirmed from their spectroscopic parameters such as IR, 1H NMR, 13C NMR and ESI-MS. The in vitro antimicrobial evaluation of these compounds were also investigated. Most of the prepared heterocycles showed significant antimicrobial properties. C3-phenyl substituted products exhibited the remarkable antibacterial behaviours while C3-thienyl/furyl substituted heterocycles proved themselves potent antifungal agents.
在本研究中,通过硝酮1(a-l)与酯取代的N-芳基马来酰亚胺的1,3-偶极环加成反应合成了吡咯并异恶唑烷3(a-l)和4(a-e)、4g、4i、4j( 2b)。这些杂环已经以顺式和反式非对映体形式获得。新合成的杂环化合物的结构已通过IR、1H NMR、13C NMR和ESI-MS等光谱参数得到证实。还研究了这些化合物的体外抗菌评价。大多数制备的杂环化合物都表现出显着的抗菌性能。 C3-苯基取代的产品表现出显着的抗菌行为,而C3-噻吩基/呋喃基取代的杂环证明了它们是有效的抗真菌剂。