3β-hydroxy-6-azaandrostan-7,17-dione 、 3β,17β-di(dimethyltert-butylsilyloxy)-androstane-6-one 、 3alpha,17beta-Di(dimethyltert-butylsilyloxy)androstane-6-one 在
6-azaandrostane-3,7,17-trione 、 SiO2 、
hexane-diethyl ether 作用下,
反应 0.58h,
以to give 6-azaandrostane-3,7,17-trione (75%)的产率得到6-azaandrostane-3,7,17-trione