(2α,3α,5α)-2,3-epoxy-21-hydroxypregnane-11,20-dione cyclic 20-(1,2-ethanediyl acetal) 在
吡啶 、
甲烷磺酸 、 (3α,4α,5α)-3,4-epoxy-21-hydroxypregnane-11,20-dione cyclic 20-(1,2-ethanediyl acetal) 作用下,
反应 30.5h,
生成 [2-[(2S,3S,5S,8S,9S,10S,13S,14S,17S)-3-hydroxy-10,13-dimethyl-2-morpholin-4-yl-11-oxo-1,2,3,4,5,6,7,8,9,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]-2-oxoethyl] methanesulfonate