Irradiation of ethanolic solutions of the 20-keto-pregnane derivatives I, XIII and XX leads to the formation of their respective stereoisomeric 20-hydroxy-18,20-cyclo-pregnane compounds, whose structures and configurations have been fully determined. Known fragmentation reactions are simultaneously observed.
辐照20-酮-孕烷衍
生物I,XIII和XX的
乙醇溶液会导致它们各自的立体异构体20-羟基-18,20-环孕烷化合物的形成,其结构和构型已被完全确定。同时观察到已知的片段化反应。