An efficient one-pot synthesis of a library of novel sugar-based spirooxindole-pyrrolidines or -pyrrolizidines has been accomplished by [3+2] cycloaddition. This method utilizes an azomethine ylide derived from isatin and sarcosine or l-proline with an α,β-unsaturated β-C-glycosidic ketone as the dipolarophile. All these sugar-based heterocyclics were characterized by NMR (¹H and ¹³C), HPLC, and elemental analysis
通过[3+2]环加成成功实现了一种高效的一锅合成新型糖基螺氧
喹啉-
吡咯烷或-
吡咯啉的化合物库。这种方法利用了来源于异靛和
肌氨酸或l-脯
氨酸的偶氮甲烯耦合物,以及作为极性合物的α,β-不饱和β-C-糖苷酮。所有这些糖基
杂环化合物均通过核磁共振(¹H和¹³C)、高效
液相色谱(HPLC)和元素分析进行了表征。