A series of C-2 cholestan-3-one spiro-oxindole derivatives were prepared by the 1:3 dipolar cycloaddition reaction between the cholestan-3-one substituted by a C-2 arylidene and the azomethine ylid derived from isatin and sarcosine. The dipolarophiles were efficiently obtained by a Claisen-Schmidt reaction of cholestan-3-one and aromatic aldehydes. The structures of the products were established by
通过 C-2 亚芳基取代的 cholestan-3-one 与衍生自
靛红和
肌氨酸的偶氮甲碱叶立德之间的 1:3 偶极环加成反应,制备了一系列 C-2 cholestan-3-one 螺-oxindole 衍
生物。通过 cholestan-3-one 和芳香醛的 Claisen-Schmidt 反应有效地获得了偶极体。产物的结构是通过核磁共振、高分辨质谱(HRMS)和X射线数据分析相结合确定的。