21-Acyloxy-16(17)-ene-20-keto steroids were synthesized from 17-keto steroids in 4 steps using palladium(II)-catalyzed oxidative rearrangement of propargyl esters as a key reaction.
21-Acyloxy-16(17)-ene-20-keto steroids 是从 17-keto 类固醇合成 4 步使用钯 (II) 催化氧化重排炔丙酯作为关键反应。