孕烯醇酮

3,3,20,20-bis-ethanediyldioxy-11β,21-dihydroxy-pregn-5-en-18-al

一乙酸醛甾酮

11β,21-dihydroxy-3,20-dioxo-pregn-4-en-18-oic acid-11-lactone

rac-21-acetoxy-11β-hydroxy-3,20-dioxo-pregn-4-en-18-oic acid-lactone