Plots of the amount of the isomeric steroid-17-yl methyl glycolate produced by a reaction of the corresponding steroids, prednisolone, dexamethasone and hydrocortisone with cupric acetate in absolute methanol, and kinetic examination of methoxycarbonylation of their products provide a general and facile method for determination of the configuration of the steroid-17-yl methyl glycolates at C-20.
相应的类
固醇、
泼尼松龙、
地塞米松和
氢化可的松在绝对
甲醇中与
醋酸铜反应生成的异构体类
固醇-17-基甲基羟酸酯的量曲线图,以及对其产物进行甲氧基羰基化的动力学检查,为确定类
固醇-17-基甲基羟酸酯在 C-20 处的构型提供了一种通用而简便的方法。