Catalyst-free regioselective synthesis of fused 11H-benzo[5,6][1,4]thiazino[3,4-a]isoindol-11-ones and benzo[b]indeno[1,2-e][1,4]thiazin-11(10aH)-ones targeting bacterial and fungal microbes
作者:Ravinder Punia、Satbir Mor
DOI:10.1016/j.molstruc.2023.137387
日期:2024.4
the regioselective synthesis of 11H-benzo[5,6][1,4]thiazino[3,4-a]isoindol-11-ones 8a–l and benzo[b]indeno[1,2-e][1,4]thiazin-11(10aH)-ones 9a–g in excellent yields. Structural elucidation of the synthesized compounds is accomplished by physical and spectral analysis data (FTIR, NMR (1H & 13C), 2D NMR, and HRMS) and single-crystal X-ray crystallography. All the titled derivatives were screened for their
亲核加成/取代,然后进行 2-溴-2-(2/3-取代苯基)-1 H-茚-1,3(2 H )-二酮/2,5-二溴-2-(2/ 3/4-取代苯基)-1 H-茚-1,3(2 H )-二酮4a-g和5-取代-2-氨基苯硫酚7a-e在无催化剂条件下在环保溶剂存在下进行用于区域选择性合成 11 H -苯并[5,6][1,4]噻嗪[3,4- a ]异吲哚-11-酮 8a–l 和苯并[ b ]茚并[1,2- e ][1 ,4]噻嗪-11(10 aH )-ones 9a–g 产率极佳。通过物理和光谱分析数据(FTIR、NMR(1 H 和13 C)、2D NMR 和 HRMS)以及单晶 X 射线晶体学来完成合成化合物的结构阐明。通过连续稀释技术筛选所有标题衍生物的体外抗菌活性。其中,8a 抗金黄色葡萄球菌、8d 抗大肠杆菌、9f 抗白色念珠菌和 8i 抗黑曲霉被发现分别相对于标准参考环丙沙星和氟康唑最具活性。