3,3,17,17-Diethylenedioxyandrost-5-ene was obtained by ketalisation of androstenedione, which was oxidised with PDC and t-BuOOH to form 3,3,17,17-diethylene-dioxyandrost-5-ene-7-one. Stereoselective reduction of 3,3,17,17-diethylene-dioxyandrost-5-ene-7-one by NaBH4 in the presence of CeCl3.6H2O gave 3,3,17,17-diethylenedioxy-7β-hydroxy-androst-5-ene, which was deprotected with p-toluenesulfonic acid to gave 3,3-ethylenedioxyandrost-5-ene-7β-hydroxy and androst-4,6-dien-3,17-dione. A series of androstenedione derivatives were obtained from 3,3-ethylenedioxyandrost-5-ene-7β-hydroxy by the esterification reaction. Their structures were confirmed by MS, 1H NMR, 13C NMR and HRMS.
3,3,17,17-二亚乙基二氧基雄甾-5-烯由雄烯二酮酮化而得,雄烯二酮与 PDC 和 t-BuOOH 氧化生成 3,3,17,17-二亚乙基二氧基雄甾-5-烯-7-酮。在 CeCl3.6H2O 的存在下,NaBH4 对 3,3,17,17-二亚乙二氧基雄-5-烯-7-酮进行立体选择性还原,得到 3,3,17,17-二亚乙二氧基-7β-羟基雄-5-烯,用对甲苯磺酸对其进行脱保护,得到 3,3-亚乙二氧基雄-5-烯-7β-羟基和雄-4,6-二烯-3,17-二酮。通过酯化反应,从 3,3-亚乙二氧基雄-5-烯-7β-羟基得到了一系列雄烯二酮衍生物。通过质谱、1H NMR、13C NMR 和 HRMS 确认了它们的结构。