1: 6 percent / Me3SiI, MeOH / CHCl3 / 12 h / Ambient temperature; other solvent, other 21-alkoxy-20-keto corticoid steroids 2: 96 percent / Me3SiI, MeOH / CHCl3 / 2 h / Ambient temperature View Scheme

methanol; trimethylsilyl iodide in chloroform 12 h; Ambient temperature;

methanol; trimethylsilyl iodide in chloroform 12 h; Ambient temperature;