A series of 1,4-disubstituted octahydroquinoxaline-2,3-dione derivatives was prepared through two steps reaction. The latter involves the formation of N,N-disubstituted cyclohexane-1,2-diamine derivatives (la-j) through reductive alkylation of 1,2-cyclohexanediamine with different aldehydes in presence of sodium cyanoborohydride. Fusion of compounds (1a-j) with diethyl oxalate affording the target compounds (2a-j). Elucidation of structures of compounds (2a-j) was based upon different spectral data as well as the elemental methods of analyses. In addition, mass spectrometry and X-ray diffraction analyses were carried out. Moreover, the lipophilicity of the target compounds as expressed from the Clog P. Most of the test compounds (2a-j) showed weak to moderate antibacterial and antifungal activities against most of the used bacterial and fungal strains in comparison to chloramphenicol and clotrimazole as reference drugs respectively.
通过两步反应制备了一系列 1,4-二取代八氢
喹喔啉-2,3-二酮衍
生物。后者包括在
氰硼氢化钠存在下,通过
1,2-环己二胺与不同醛的还原烷基化反应,生成 N,N-二取代
环己烷-1,2-二胺衍
生物(la-j)。将化合物(1a-j)与
草酸二乙酯融合,得到目标化合物(2a-j)。根据不同的光谱数据和元素分析方法,对化合物(2a-j)的结构进行了阐释。此外,还进行了质谱分析和 X 射线衍射分析。与
氯霉素和
克霉唑(参考药物)相比,大多数测试化合物(2a-j)对大多数所用细菌和真菌菌株表现出弱至中等的抗菌和抗真菌活性。